Viewing Report 13th September 2024 Tenerife Adeje

21:00 – 23:00

My second night at the villa with the family. I’ve taken my Sharpstar 61 refractor with me this time with an effective focal length of 272mm. I normally use this a my guider for the Esprit 100 or 120. And I’ve placed it on the AM5 and have attached the trusty 50mm Skywatcher guide scope to it.

Ready to image

Luke has helped me setup this evening after managing to have an accident yesterday which caused me to have butterfly stitches to my shin πŸ€¦β€β™‚οΈ

So after about an hour of setting up, finding focus, working out the focal length and polar aligning we have set off to test the first image from this little setup. The FoV is 4.94 x 3.30 degrees.

Plate solve of the first image

NGC 7000 the North American Nebula that is almost overhead, thus removing problems with the pool lights that I have not yet worked out how to turn off.

We are taking 12 x 5mins with the ZWO ASI2600MC colour camera, cooled to -10℃ as the temperature outside is a balmy 21℃.

Single 5min exposure

Once done I will call it a night as I really need to turn off those pool lights.

Screenshot of 5min exposure

Darks – 6 x 300s

Flats – 12 x 0.35s

Single Flat

Viewing report Travel to Tenerife Night 6 – Tuesday 9th July 2024

Started at 10pm

Focus position main scope 15,946

Ended at 5:30am

Very windy night with 1.6’ seeing! I started with NGC 5982 Draco triplet but the wind was too high at 48.25 km/s! Trailing stars everywhere and guiding was useless at 36”!! So paused imaging until the wind dropped slightly. I continued to monitor the situation from the Teide Observatory Grafana dashboard page here;

http://161.72.1.36/v2/d/cww_ot/common-weather-website-of-teide-observatory?orgId=1&refresh=1m

Back up in my room I can hear the wind whistling past my window. After another hour the conditions were no better so I set the mount to run all night across 3 objects and went to bed crossing my fingers the ASIAIR and AM5 mount behaved well.

I was then delighted by sunrise that I had captured some useful data, not as much as I had hoped but good news enough. I had captured ok data for M11 of 12 x 300s subs.

M11 single 5 min sub

I also grabbed 19 semi successful images of M22,

M22 single 5 min sub

and lastly only 8 not great frame of M30 at the beginning of the night which quite frankly need to be taken again.

M30 poor frame 5 mini sub

Viewing report Travel to Tenerife Night 5 – Monday 8th July 2024

Started to image at 10pm

Focus position main scope 12,315

Ended at 6am

Tonight started with  0.7’ seeing. I was going to start imaging on the Dragons of Ara, however when I slewed I realised it was behind the mountain to the South. So instead I moved slightly up to M19 to finish my run on that glob from yesterday for around an hour in the hope the Dragons would clear the mountain by then and still be West of the Meridian.

M19 single 5 min sub

So by 11:30pm the πŸ‰ nebula had cleared the mountain and so I started imaging it at some 10 degrees altitude. I was not going to bother capturing more data on other nights as it is very low and the stars are bloated to about 6 pixels rather than 3 pixels. That said, once stacked and Blur Exterminator process was run it was very pleasing. So I may try to capture some more data.

NGC 6188 Dragons of Art – 5 min sub

After 2 hours it was a mere 5 degrees above the horizon and the star size had increased from 3.32 pixels to 6.01 pixels so I decided to call it a day and move to the globular cluster M28 at the top of the lid of the teapot.πŸ«–

M28 single 5 min sub

After that I went on to grab 10 frames of the glob M30 before twilight. 

M30 single 5 min sub

Viewing report Travel to Tenerife Night 4 – Sunday 7th July 2024

Started at 10pm

Focus position main scope 12,233

Ended observing at 6:10am

A beautiful night with 0.8’ seeing. Started with a set of globs, namely more data for M62,

M62 single 5 min sub

a new globular cluster M80

M80 single 5 min sub

and globular cluster M19,

M19 single 5 min sub

then finally the Crescent nebula which I managed to grab just shy of 3 hours on. I ran all the way to twilight at around 6am and then packed up for bed by 7am.

Crescent Nebula 48 x 5 min subs

Crop of Crescent

Viewing report Travel to Tenerife Night 3 – Saturday 6th July 2024

Started imaging at 22:20

Focus position main scope 12,330

I ended my observing at 6:15am

Tonight started with low cloud making it slightly hazy although the seeing was around 0.7’.

I found setting the guider to a shorter exposure of 3s improves the guide graph considerably.

Makarian’s Chain – Final stacked image from 3 nights of data

I took another hour of Markarian’s Chain before moving on to M4 for another hour of data.

M4 single 5 min sub

Next I slewed to the first new object for tonight M62 another glob very close to M4. I took 12 images of M62 the globular cluster in Ophiuchus.

M62 single 5 min sub

All was going really well so I moved on to M39 the Open Cluster Cygnus and being high up I took 2 hours of data.

M39 single 5 mins sub

Lastly before bed I took my first set of data on the Crescent Nebula NGC 6888

NGC 6888 Crescent Nebula single 5 min sub

Viewing report Travel to Tenerife Night 2 – Friday 5th July 2024

Started imaging at  10pm

Focus position main scope 12,327

Camera temperature -15℃

Ended imaging at  5:45am

Very calm night 0.7’ seeing and at the start little to no wind. The temperature was around 16-17℃ all night.

Started with Markarian’s chain again to gather better data than yesterday’s. Captured 15 x 300s tonight. I’ll do another final set tomorrow.

At 23:45 I moved on to M4 a globular cluster in Scorpius. I will continue with this again tomorrow night as I landed up with about 1.5 hours of usable data.

M4 Globular Cluster – stacked only

At around 2am I moved to M55 as M4 had got fairly low in the sky so I will come back to that tomorrow night. I did find there was too much time spent refocusing so I have now changed this to only as the temperature changes and at the start of a new image rather than every 30mins as well.

M55 Globular Cluster – Stacked only

I captured 3 hours on this lovely globular cluster.

Viewing report Travel to Tenerife Night 1 – Thursday 4th July 2024

Started imaging at 11pm

Focus position main scope 12,334

Camera temp -15℃

Ended imaging at 5:30am

Beautiful night slightly windy 0.9’ seeing at first but then changed dramatically later to around 2.2’

Markarian’s Chain suffered from many satellite trails, more so early on.

View from the iPad

12 x 300s so 1 hour of Markarian’s chain

By the time I started to image M39 the wind had started to pick up and I found even guiding at 60s was causing star trails.

M39 single 5 mins sub

So about 3am I started taking darks and then by 4:15am the seeing which was really the problem had settled down from 2.2 arc secs to 0.9! I went back and took 30 x 60s subs for M55 and then another 30 x 60s for M39 before heading off to bed.

M55 single 5 min sub

This is the final stacked and processed image

M55 – 33 x 5 min subs

Imaging test (8th June 2024)

So given it was a non-work night and predicted to be clear Dave invited me over to test the gear/setup prior to the BASEG Tenerife 2024 trip.

Given we are fast approaching the summer solstice, the nights are getting shorter and lighter. The Annual Darkness chart for IMT3 shows that we currently have no astronomical darkness and the nautical darkness lasts only for some 3.5hrs (left image) and now compare that the darkness graph for Mount Teide in Tenerife (right image) and although we lose some dark hours around the Summer Solstice it’s not as much as is lost being located at 52Β°N.

Setup – added BlueAstro stick station to measure pressure as Pegasus have not exposed the pressure measurement from the NYX101 mount to the ASCOM layer … why not ? Added weight bag to NYX-101 and GL.inet travel router to top of the scope as MS Windows keeps messing up the Wi-Fi hotspot on the Mele Quieter3C if it does not detect a internet connection ….. how stupid is that. Now I have a permanent hotspot thanks to the instructions given by Cuiv the Lazy Geek on his YouTube channel.

When attempting to polar align when using the QHY PoleMaster I noticed that the sky brightness below 15 mag2/sec (measured by a Unihedron SQM) produced a white screen due to over exposure – the minimal exposure in the now aged the QHY PoleMaster software (> 4yrs since last release) was 50ms which is too long even though I could eyeball Polaris in the early evening sky.

NINA 3.0 start up had not detected the QHY native driver and after I shutdown and restarted the app it then was able to detect the QHY 268C camera. However, it disconnected when it could not cool to -10℃ which I’ve never encountered before. I did eventually managed to get it cool and stay connected.

During guiding calibration OpenPHD2 would constantly complain about losing the star. Again the star was clearly visible on the PHD display and after downgrading from 2.6.13dev4 to dev3 and then I suddenly realised the value the error was referring to. I changed the minimal star HFD down to 1.0 from 1.5, also recreated the dark library to remove the possibility of the guider attempting to guide on a hot pixel.

Once guiding, the guide graphs were reporting 0.08 – 0.19 arcsec total polar alignment error. Hopefully I will learn to improve that and maybe repeat the polar alignment procedure or use PHD drift align to refine it.

I also forgot to change filter at the start of the evening from the Antila Quad Band filter to the Baader UV/IR filter. I noticed a halo from the bright star Arcturus in the constellation Bootes which I was testing autofocus on but I decided to continue regardless as I was only testing.

The goal for the night was to grab a base image of T Coronae Borealis (“The Blaze Star”) before it goes nova – it’s a reoccurring nova with a 80 year cycle. The star is currently hovering around 10.2 magnitude and it is predicted based on previous eruptions to reach around magnitude 2. As I ultimately wanted to perform some photometry on the star using the UV/IR cut filter I did want to blow out the cores of any bright star so I opted to use the ExtendedFullWell2CMS mode at gain 0, offset 30 with 60 second exposures. During the sequence I forgot to watch HFR/Star count graph and it rose above 5 which meant I have to refocus to (HFR ~2.0) and so due to my oversight due to chatting I will have to dump a lot of the early subs.

At the end of nautical darkness I stopped the sequence and used the NINA flat wizard (dynamic exposure) with the old PegasusAstro 120 flat panel at 100% brightness to create 25 flats and flat darks for a target of 33% ADU. After packing up and the with the pre-dawn temperature hitting 4℃ just before 4am I was looking forward to getting to bed.

At the next clear non-working evening I will attempt to grab some subs again but this time using the correct filter. Thank you to Dave and family for hosting me once more.

NB – NINA 3.1 was formally released the following day (09/06/2024) !

Pegasus NYX-101 Harmonic Mount

I’ve always liked what PegasusAstro have been doing with their astronomy equipment and I already own an original FlatMaster120, UPBv1 and a UPBv2.

Overview

Packaging – The mount transport box is (21cm x 34cm x 34cm) which is larger than the AM5 transport box. Weight/Size (6.4 Kg compared to ZWO AM5 5 Kg). The build quality follows the same high quality and blue anodised styling of recent products.

On opening the packaging I found damage to the mount knob indicated a possible rough handling in transit with plastic shrapnel in its plastic bag. This was superficial and did not impact the function or integrity of the mount.

There was no hand-controller supplied in the box but the manual hints that a hand controller can be connected to the ST-4 (EXT) port but no detail on if that is compatible with any existing hand controllers, so for now we have to use the Unity PC application, ASCOM access or the mobile phone application (Android).

The USB2.0 port is better than others I have encountered on other mounts such as iOptron and it grasps the cable securely and does not feel loose or feels like it would just drop off. This is especially useful as I tear down each night so let’s see over time if it maintains the positive connection it has at the moment. I connected the mount USB and power to the UPBv2 sat on top of the scope.

The carbon fibre tripod has no stone bag which can be found on other astro/photography tripods. You could suspend some form of weight from the leg spreader that might help prevent the tripod from tipping over with heavier scopes.

I found the Altitude adjustment a bit loose and takes a bit of getting used to even though the NYX101 has altitude tightening bolts which themselves seem to shift the altitude which again affects polar alignment if you are not careful.

Due to the compact nature of the mount there is no room for a GPS receiver so this function is relied upon either from your phone or by pushing the values from Unity or via Uranus device. If you push from your phone and you have Unity running then Unity will not see the change until you restart Unity.

I like the SW tripod (adapter required) and M12 counterweight compatibility, LX200 protocol support, polemaster placement support. There is a polemaster mounting plate but this is a permanent fixture via screws with no quick release mechanism. However there was a post on Cloudy Nights by PhilippeL on a release adapter he made, CAD link here.

Experience

Usage

Set your park/home positions and then enter in your location/altitude via Unity/Mobile phone app so that the mount understanding things like horizon limits.

As with other mounts, care needs to be exercised that your scope does not collide with the tripod legs, this is still a risk when using the pier extender with longer length scopes.

Unity Software

I couldn’t find a change history or date on the released Unity Platform on the website so it’s not easy to look back when things happened but you can use this link to check the currently available version. I used version 1.8.1733.15, when upgrading the existing Unity software the update process will remove all older versions including the ASCOM drivers and then install the latest version.

I do seem to lose wireless connection to my house router randomly even though the mount was positioned within 6ft of it. I had setup the router to give the mount a static IP address via DHCP but I don’t know it loses the connection – DHCP lease time is set high.

Firmware Update

When I first looked at configuring the NYX-101 to connect to my house network I had no end of trouble getting a connection. The only way I could achieve a connection was to have both the PC/laptop and mount connect to one of my travel routers which itself was also connected my the house wifi.

I soon worked out that the “Smart Connect” feature of my house wifi router was attempting to connect the ESP32 wireless (2.4GhZ) of the NYX to the 5GhZ band. Once I had put the MAC address of the NYX-101 into the exclude list of the house router 5GhZ band then it would reliably connect to the 2.4GhZ band. From that point onwards everything worked as expected and I could then successfully perform the firmware update to 1.15.

The 1.19 firmware (released the week 13th March 2023) also brought a pleasant surprise of the motor noise being reduced when slewing. This is a welcome change since making any noise in a suburban garden location in the early hours of the morning when people sleep with their windows open is highly undesirable.

Resetting park & home

I actually turned off the mount by accident whilst the mount was pointing somewhere in the sky so it lost its position and didn’t know where park and home was. This is easily rectified by moving the mount via one of the applications to the correct marks and setting the home and park positions again. This issue was mostly solved with a later firmware update where the mount now remembers where it is pointed once power is restored. However on performing a meridian flip (no slew & center) and then instructing the mount to home resulted in the mount not being it’s predefined home location.

Mobile App (Android)

Originally there was only Android11+ support but after raising a support ticket (support@pegasusastro.com) to request that the documentation state that the linked app only supported Android 11 I also requested a pre-Android 11 support. This actually appeared pretty quickly on the website so kudos to PegasusAstro for the fast response.

I do suffer regular disconnects from the mount when using the mobile app via the hotspot. I’m not sure why this is as I was sat right next to the mount, could be down to an idle time-out ?

I also see the NYX-101 disconnect from my house wireless router in Unity but could locate no reason why (DHCP lease was valid), I could find no entry in the Unity log files or see no reason on the router. Now this could possibly be either interference from other 2.4GhZ networks or down to the Aluminium casing, would an external aerial resolve this problem ?

There is no way to reconnect to the wireless other than shutting down Unity so as long as you have a USB connection then everything should continue working.

Mount/Altitude Limits & Meridian Flip

To begin with I set the meridian and altitude mount limits in Unity and then test the automated meridian flip using ASCOM simulator for the camera. Regardless would I did the mount would stop 10 degrees because hitting the Meridian. It slowly dawned on me that I had set the meridian limit to -10 which I thought was 10 degrees after the meridian but the value should have been +10 so it was actually stopping 10 minutes before the meridian ……. dooh !

Unity hard limits for Elevation & Meridian

Once I made the change then both NINA and SGPro performed the meridian flip just fine. There is also a switch to enable automatic meridian flip to prevent any potential crashes but I opted to leave this disabled so the mount would just stop tracking but NINA would continue taking new subs in both simple & advanced scheduler.

One item that would really help here in a text box with optional input to set either limits instead of having to grab the slider to see the current setting – I can query/set this in the API but it’s not easy to view and change using the slider method.

Polar Alignment

I used the polemaster software to perform a polar alignment but decided to utilise SharpCap to compare the alignment procedure and difference. Because SharpCap requires the scope to be slewed 90Β° so the scope weight was now on on horizontal the RA axis dropped causing the mount to shift and results in the PA being 4Β° off axis.

This would happen regardless even if I tightened up the axis bolts. Talking to another user he suggested at using a counterweight but to me this would negate the mount as a portable mount.

Guiding

Using the OpenPHD guiding reference document (link), it appears the that the harmonic gears have a period of 430 seconds with a periodic error of +/- 20 arcsecs or less. Two complete periods are required for the Permanent Periodic Error Correction (PPEC) before guiding any improvement will be seen, this is pertinent for the imaging train in use at the time. If you change the imaging target the model will re-initiate the PPEC learning cycle.

The recommendation is to set the guiding interval to 1 – 1.5 seconds and try to be within 30 arcsecs of polar alignment error. I certainly found keeping the FSQ85 setup to around 1.5 seconds resulted in better guiding graphs compared to 3 second intervals.

Support

After initially purchasing the mount I took my NYX-101 along to Astrofest 2023 (UK) for Evans to look at (by prior appointment) as I was not entirely happy with the resonance during slewing. I compared my mount against two other NYX-101 mounts in my astronomy society and it definitely sounded like it had been treated roughly during delivery transit. Although Evans did a great job to investigate the mount during the show, due to the noisy nature of the exhibitor floor it was not obvious that it had been resolved until I was in a quiet environment back at home.

On contacting PegasusAstro I was offered to have the mount picked up by DHL and couriered back to Greece for inspection. The whole process from DHL pickup was professional from picking up to receiving the mount back, the service was excellent and he mount was backed with me 7 days later. The courier communications was good but I received no notes or communication on what was done (board serial number was the same) under I enquired. The most important thing the mount operation was much better and more akin to the other two reference mounts I had listened to; my gratitude to Evans and the team for their patience with me.

It had been reported on various forums that the ZWO ASIAir had suddenly stopped working with the NYX-101 and some heated speculation quickly arose as to the reason why this occurred. ZWO was quick to dispel any conspiracy theories and rightly put their hands up and stated it was a bug in ASIAir software (link) which would be resolved in the 2.1 beta release (you will also need the latest firmware). Kudos should go to ZWO for setting for the story straight and resolving the issue to the benefit of the astro community.

First Light Use

So Dave asked me to come over to the observatory for the evenings of 26th & 27th so I could do a test run on the kit I would be taking to Tenerife later that Summer. At this time the M101 Supernova SN 2023ixf so I decided to image it alongside Dave using his 17inch RDK and Bob’s 24 inch RDK.

Using the QHY Polemaster I noticed that when I rotated the mount for alignment that the chosen calibration star moved away from the rotation circle – is the mount slightly misaligned ?

The guiding document available here were extremely helpful in testing out various settings. Certainly I was seeing some trailing around 3 seconds but that could have been due to the PA issues or balance. I ended up using Predictive PEC and setting the interval to 1 second just to see what would happen. I still noticed large variations every now and then and it was not as smooth as I’d hoped for.

Slewing to a target after plate solving it was clear that the mount had moved outside my FoV at first slew. This was unusual for me as my CEM60/NEQ6 first slews were always in the FoV, this issue may be related to an situation observed by Chris Woodhouse and can be rectified by following his forum post.

Chris asked me to confirm his experience of overshoot when slewing in the DEC axis causing the target not to be in resulted field of view. Chris had raised a support ticket for this issue and PegasusAstro were investigating.

Closing Thoughts

The NYX-101 is more expensive that the competing ZWO AM5 but the NYX-101 offers more weight carrying capacity (20 Kg versus 13 Kg without counterweights) and compatibility with those already own QHY Polemaster, SW NEQ6 or similar tripods.

The direct open API (REST) via Unity or access via ASCOM Alpaca allows me to query components and it’s easy to script up web status pages quite easily.

If you only ever plan to use light imaging equipment and are already invested into the ZWO eco system then the AM5 might make more sense but if you wanted to use other vendors equipment then for me ZWO is a closed ecosystem with limited flexibility.

If using USB3 cables for any equipment such as CCD/CMOS cameras then it is wise to invest in a high quality shielded cable as USB3 tends to have issues in the presence of 2.4GhZ. I used 5Ghz wireless from my Mele Quieter3c mini PC to avoid this problem but I would advise to use good shielded cables in all situations.

I’m looking forward to taking the mount on the upcoming trip to Mount Teide, Tenerife to see how well it performs under dark and clear skies πŸ˜€

Wishlist

The following wishlist is based on my experience of using the NYX-101 alongside the Ultimate Power Box v2 (Firmware 2.4) and NYX-101 (Firmware X.Y.Z) via the Unity software (1.9.1825.32) :

  • Would be nice to see dust covers provided in the box for all the various ports on the back of the mount.
  • An external aerial port might be useful for the included ESP32 wireless connection ?
  • An option to power other Pegasus items such as the UPBv2 from the aux power port on the mount ? This would mean that then I would only have one cable going up/down from the scope to the mount which is especially useful for those who are mobile and don’t use the NYX mount in a permanent setting.
  • Include a hand controller in the default offering or document compatibility with any existing hand controllers. Could utilise the USB port instead of relying on the ESP32 internal module ?
  • Display the MAC address of the ESP32 module in the Unity app (wi-fi network tab) so it’s not necessary to hunt for it in the router’s client connection pages.
  • A disconnect/reconnect button for an existing wifi connection definition.
  • An editable display box for both the meridian and altitude limits where I can enter the desired value as I can only know what the settings are by actually grabbing the sliders or reading/setting the position from the REST API.
  • API call to set/get horizon & meridian limits as a profile similar to the location. This would allow the user with different scopes/piers/tripods to store different hard horizon/meridian and auto meridian flip settings.
  • If possible add a NYX-101 uptime value to Unity and API similar to other products like the UPBv2 to show how long the NYX-101 has been powered on.
  • If possible add a timer field to the wireless tab to indicate how long the mount has been connected to the configured wireless access point and/or the USB connection.
  • The NYX-101 health status in Unity sometimes doesn’t not render correctly on smaller/different aspect screens between Unity releases such as a Dell 13.3″ laptop.
  • API call to provide NYX-101 health status if the information is not already available via other API calls.
  • API call to indicate if a new firmware (inc version) is available as it is indicated in Unity ?
  • A changelog history for NYX-101, Unity & UPB between versions.

Update

As of May/June 2023 there is now a XT60 cable available to run from the AUX port to run to the UPBv2 and now I only need an adapter cable to fit my 10 Amp PSU with a XT60 connector.

14th June : Firmware 1.21 released by PegasusAstro and the patch notes show this release fixes the DEC axis overshoot experienced by Chris Woodhouse :

  • DEC motor accuracy improvement during slews. In previous firmware declination axis tends to overshoot.
  • Wi-fi hotspot channel width was reduced from 40MHz to 20MHz to improve channel data integrity.
  • Wi-fi hotspot can turn ON and OFF.
  • Wi-fi hotspot channel can be selected from 1 to 11 (11 is the default).
  • Reset home is not allowed when mount is hard encoder limit.
  • Improved accuracy after n-star calibration.
  • Improved mount position store interval.

M101 SuperNova (27th-28th May)

DSW invited me over to the IMT3 observatory for an imaging weekend to image M101 and the recent supernova2023ixf discovery. DSW was using the 12inch RDK and I decided to put the FSQ85 on the Pegasus NYX-101 to test out the setup ready for our Tenerife trip to Mount Teide.

I ran the QHY268C at high gain mode, gain 56, offset 30 and -20℃. I finally managed to cure the noise banding I was experiencing on the QHY268C but using a fully shielded high quality USB3 short length cable that I run from direct to a Pegasus UPBv2 that sits on top of the scope.

Although it’s mid summer and the Moon was bright and approaching full the phase, the sky conditions on the first night appeared to be okay at first sight. Before processing I decided to check on data quality via the blink module in PixInsight it was obvious that they were a lot of unusable subs due to high cloud and using them would have ruined the quality of any resulting stacked image.

Running the data stack of raw images through the PixInsight Subframe Selector to analyse the PSF SNR versus noise it clearly shows that I could only use 7 frames (35 minutes) didn’t drop below 0.08 from night one whilst all the data from night two should go straight into the bin along with most of night one πŸ™

Pixinsight SubFrameSelector

Given I don’t have enough data to do the end result justice due to my poor PixInsight skills I decided to invert the images – I really should subscribe to Adam Block Studios (Shout out !)

Inverted image of M101, supernova 2023ixf and surrounding area

Running the AnnotateImage Script labels the various galaxies in the image which I enjoy looking up to see which type they are, magnitude and how far away they are.

Annotated FoV for area around M101, supernova is not labelled

Zooming in to M101 to see the Supernova better, it is located to the right of NGC5461 and indicated by the two arrows.

M101 with SN2023ixf indicated by the arrows

Light Curve

The AAVSO have a light curve plotted from measurements submitted by amateurs, just enter “SN 2023ixf” and submit here. It was still around 11th magnitude on 18th June but there does appear to be a slight decline in the brightness curve.

Viewing Report 26th May 2023 (M101)

22:47 – 03:15

M101 for me this evening to try and get there RGB data in one night. GingerGeek has come round to test out his travel setup, he has a Takahashi FSQ85, QHY268C and the Pegasus NYX-101 harmonic mount.

Focused at 20,105 on Luminance so RGB will be 21,105

1 x 300s Red

Taking 2 minute exposures for each colour at -25℃. I then realised 5 minutes is so much better. So at 1:30am I then started exposing at 5 minutes with the plan to combine both data sets. The SkyX worked brilliantly as can be seen below, looking after the guiding and image capture.

The main challenge I had early on was the the dome shutting unexpectedly. I will attempt to find out why over the next few months. The camera noise continues to be an issue but less so tonight so I think it may be USB related, again I will troubleshoot and check there cable lengths.

GingerGeek had a productive night troubleshooting a multitude of problems on his untested travel kit and was pleased with the results including taking his first image of a supernova in M101.

Viewing report 8th & 9th March 2023 Tenerife Los Gigantes Villa

Between 9pm and 12:30am both nights

View from the Villa facing South West

A week with the family in Tenerife afforded me the opportunity to test out for the 2nd time this year the Skywatcher 100 Esprit on the AM5 harmonic mount with the ASIAIR in control and the ASI2600MC with a new Antlia Triband RGB Ultra filter.

Travel Rig

Over the period of the week I picked 2 nights when I wanted to observe. Because of the clement environment of Tenerife and the Canaries and unlike the UK, you can decide when to go out and image as almost all nights are clear, the weather warm, around 22 deg Celsius and the bed not that far away from the pool. Given when we were on holiday which was decided around other activities, the Moon phase was Full.

Night time flood lit pitches

The one problem with renting a villa is when the owners will not pinpoint where on a map it is. There is normally a reason. In this case it was because of the proximity of the local sports buildings. A swimming pool to the front of the villa including a floodlit pitch and 2 more flood lit pitches to the left and right of the villa at the rear.

Impact of flood lighting

So yes it was bright, very bright, as can be seen on the villa party wall.

Full Moon and Floodlights

So given all that light pollution I was then pleasantly surprised how well the final image came out of the singular target I chose. NGC 2244, the Rosette Nebula.

NGC 2244 Rosette Nebula – 6 hours

I exposed for some 75 x 300s over the 2 nights. All the images were on the West side of the Meridian to make it easier without a flip.

Crop of cluster

I found stacking 75 images instead of just the first night of 30+ images gave a much smoother background and nebula, much less noise and easier to work with the data.

Wider crop including dust

So not a bad photo for Full Moon and 3 flood lit pitches. I look forward to testing out the kit at the top of the mountain later in the year under New Moon dark skies.

Viewing Report Thursday 30th June 2022 Tenerife – Parador

21:30 – 06:30

Observing setup

First of all tonight I have taken darks for 300s that are needed for the earlier data. However I am still suffering from the QHY168c disconnecting from the laptop, this time in TSX. I have upgraded the software yesterday but this has not made a difference, so it must be something to do with the way there USB cable is connecting. I will attempt to troubleshoot when I get home. Right now I have switched to Ezcap again which seems to be ok.

I have setup over by Mark and will see what this location is like behind the pool building. I have found that the WiFi is weak or non existent. Also the staff room is nearby and the light is constantly on so maybe not the best place to image from.

@00:03 NGC 6352 30s -20℃ I took a single exposure of this.

@00:19 LDN 10 30s -20℃

LDN 10

@00:42 Haumea 30s -20℃

Haumea

@01:26 Makemake 30s -20℃

Makemake

@01:52 Pluto 30s -20℃

Pluto

@02:33 Eagle nebula 30s -20℃

M16 Eagle Nebula

@03:45 NGC 6520 &| B86 30s -20℃

NGC 6520 & B86 ‘Ink Spot’

Viewing Report Tuesday 28th June 2022 Tenerife – Parador

22:05 – 05:50

Pond at the Parador

@22:30 Omega Centauri 30s -20℃

Omega Centauri

@23:17 Centaurus A 30s -20℃

Centaurus A

@00:02 M24 30s -20℃

@01:33 M6 30s -20℃

@02:38 M25 30s -20℃

@03:26 LDN 564 300s -20℃

Flats taken

Darks 300s -20℃ (take tomorrow) / 0.35s -25℃ – DONE

Viewing Report Monday 27th June 2022 Tenerife – Parador

22:00 – 07:00

Skywatcher Esprit 120 ED

First thing tonight is to complete taking the darks from yesterday, so I need 20 x 120s -20℃, but also the flat darks I forgot for the 0.35ms flats. Then I will move to taking longer images tonight. The challenge with open clusters is that you need short exposures so you don’t oversaturate the stars.

@22:50 Omega Centauri 30s -20℃

Omega Centauri

@23:20 Centaurus A 300s -20℃

Centaurus A

@00:09 Makemake 120s -20℃ x 10

@00:29 Haumea 120s -20℃ x 10

@01:07 M8 Lagoon 300s -20℃ x 24 (focus drifted so review later images)

M8 Lagoon

@03:22 Comet C/2017 K2 PANSTARRS 120s -20℃ x 7

@03:53 M21 30s -20℃ x 90

@05:00 M20 & M21 120s x5

M20 & M21

@05:45 LDN 574 300s x 9 which was a mistake

LDN 574

Dark Flats – 0.35s -20℃ – DONE / 0.35s – 25℃ (tomorrow)

Flats – 0.35s -20℃ – DONE

Darks 30s -20℃ – DONE / 300 -20℃ (tomorrow) / 120 -20℃ DONE

Viewing Report Sunday 26th June 2022 Tenerife – Parador

22:55 – 08:00

Teide

Finally got our bags today from the airport. Having arrives on the 2:05pm flight and not hearing from BA by 4pm, Lawrence and I headed off down the mountain in search of the 4 missing bags. It took just over an hour to arrive back in the Cicar car park.

Once there we headed inside to be told the the Iberia desk, which deals with lost and late baggage was only accessible the arrivals hall and so we were told to go through the exit doors and not to worry about the police. So we nervously😱 walked through and were greated with the sight of all the lost bags!

Blurry Bags

It took some 20 mins to sort through the paperwork before we were pushing the bags back to the car for the 1 hour drive back up the TF1 and TF38.

After a hearty dinner, which was absolutely delicious and filling, we headed outside around 9pm to start setting up. This took me the best part of 2 hours to put the gear together after ferrying it from upstairs and then another 60 mins to calibrate and be ready to image. First up tonight is M23.

@ 23:55 started on M23 Open Cluster, 30s -25℃ exposures so not to saturate the stars.

M23

after 87 images escape hung!

@ 01:20 started on M18 Open Cluster 60s, 10 -20℃ or so images this time using TSX to image and then refocused and took 80 images in total.

M18

@ 3:22 started on M26 Open Cluster -20℃ took 68 at 60s

Pluto 4:41am 120s -20℃ I took 10 frames

Pluto

@5:21 M73 Open Cluster 60s -20℃ took 60 frames

M73

Flats 0.35s -20 & 0.35s -25℃

Darks – 30s -25℃ – Done / 60s -20℃ – Done / 120s -20℃ (tomorrow night) / Flat Darks (tomorrow night)

Viewing Report 27th May 2022

19:48 – 03:08

Mobile rig

Tonight is the first night of testing the mobile rig for our 2022 Tenerife BASEG trip. I have just started to setup and am waiting for night to fall. The weather is warm and clear and I am on the IMT3b observing patio.

Tonight is about making sure I can take a set of images and guide and that everything works.

First thing to note is on firing out TSX that I need to change the settings for the mount and select usbmodem1442101 and then connect. This did not work the first time and resulted in an error, disconnecting the USB from the 2 port hub and reconnecting fixed the problem.

Ready to image

Took 44 x 300s on M101 and started to pack up at 3:08 when it was getting light which I could see on the SQM.

The next morning zzzzzz
M101 300s Exposure

Viewing Report 10th December 2021 – IMT3

04:00 – 06:53

Comet C/2021 A1 Leonard. The last day to get this lovely little comet. Dave Boddington had captured a wonderful image yesterday through his 6″ and 4″ refractors. I was was never going to be able to do that with my 5″ refractor due to my broken foot and not being able to move it from the Warm room to the verge on the other side of the lane at the front of my property.

Space boot πŸ™‚

So instead I settled for the good old Canon 6D on a tripod. I had slowly gone up and retrieved the kit the day before in the light and now at 4am set off out the front, crutches in hand, camera on tripod strapped round my neck, in the dark at 1℃.

After getting comfortable standing on the verge, I extended the tripod legs balancing on 1 foot and set the camera on Arcturus to focus at 100mm. I had chosen the 100-300mm lens for maximum flexibility. After achieving focus by hand and by using the zoom function on the camera screen, I placed the camera roughly in the direction of where the comet should appear just below Corona Borealis in the faint constellation of Serpens. This is the shot I got.

Comet C2021 A1 Leonard

I then changed focal length going to 300mm on the zoom lens, switched back to Arcturus to focus and then, after a few attempts, actually some 20 minutes, I managed to get the comet back on the chip. Result!

Comet C2021 A1 Leonard – 300mm

I packed up the tripod, hung it round my neck and headed slowly and gingerly across the lane and back up the drive to the house. When I had removed my one shoe, cleaned my boot and my crutches I looked at the camera lens and was not surprised to see a lens full of dew πŸ™„

Dew on the lens

I then set about opening the dome of the observatory as the comet would have now cleared the tree line. However it would not open 😳 On closer inspection, meaning I went back out in the cold and up the garden, I found the shutter would not operate. Some time spent investigating led me to believe the battery in the shutter box was dead πŸ₯Ί so I removed and took back to the house for further investigation later today. That meant no comet photo through the 12″, however I was pleased with my results given the challenge.

Battery box for shutter

Viewing Report 8th October 2021 – IMT3

22:30 – 03:57

Tonight I am at Kelling Heath star party with Shane and Mark Radice. After a fantastic board game with Mark, Shane and Shane’s wife we then headed back to camp and I started to look through there binoculars using the NSOG (????) book as my guide. Whilst I realised I could have got away with bringing the Milkway edition, instead I brought along the Autumn/Winter version.

I had packed my 100mm Altair Astro binos so it was going to a visual night with some rudimentary drawing. I looked around and set my gaze on Pegasus and turned to the pages in the guide to set me off.

First on the list was M15. It appeared relatively close to

m15 – seen

peg 1 – seen

3 peg – seen

53 peg major seen not companion 

ngc 7217 – not seen

ngc 7331 – seen with averted vision

ngc 7332 – not seen

ngc 7814 – not seen

M39 seen

M42 seen

veil eastern seen

North American seen

tried UHC filter baader from Mark in 1 eyepiece in binos abs made nebula stand out

bed at 3:52am due to fog and 9deg c

looked at M81 and M82 through Keith’s 18”

could not see horse head 

M42 WOW!! and M43 both through 13m Ethos 100 deg and then 21m Ethos

Viewing Report 5th March 2021 – Travel Setup

23:38 – 00:18

Orion NSOG Finder Chart

A short trip out tonight and only with the binoculars. I wanted to start my journey through Orion star hopping using the Night Sky Obervers Guide as my bible.

With the tagging of objects as follows I setup the binos and went about looking up

Sp – Showpiece

Bs – Binocular Sky

Bo – Binocular Objects

34 Delta Ori (Bo) – The first object for tonight. Given the time I started and taking Orion’s belt as a reference, the middle star called Alnilam or 46 Epsilon Orionis was at an altitude of +09 vs if I had gone out earlier at say 7pm of +37 so this was a challenge before I started.

Belt stars Finder Chart from NSOG

I did however see 34 Delta Ori (Mintaka) at Mag 2.2 and instantly knew it was right as I could see its double star companion around 1’oclock shining at Mag 6.8. It was a lovely sight seeing this visually tiny companion next to this larger and brighter star. Was very pleased I had started observing visually again.

34 Delta Orionis

41 Theta Ori (Bo) – Not seen as set

42 Theta Ori (Bo) – Not seen as set

43 Theta Ori (Bo) – Not seen as set

41 Iota Ori (Sp) – Not seen as set

48 Sigma Ori (Bs) – Another lovely little double star, just South West of the first of the belt stars from the left, Alnitak, 48 Sigma Orionis is a Mag 3.8 star and I could clearly make out the Mag 6.7 at around 10 o’clock.

48 Sigma Orionis

B 35 – Not seen as expected due to lack of aperture

Basel 11B – This is a really tiny open cluster of stars, I knew it was there as I star hopped from Mu Gemini that I could see clearly at Mag 2.9. I could see Chi1 Orionis and Chi2 Orionis that form the upper stars in Orion’s club but it was easier to star hop from Mu Gem.

Finder chart for just North of Orion

Basel 11B sits just North West of the club and reportedly has 12 stars, I could only see it with averted vision due to the aperture of the 100mm binos, however I would say 3-4 were visible, given they are Mag 10+ so pretty faint for this instrument.

Basel 11B

Berkeley 21 – I was really not sure if I could see this, even with averted vision. The cluster is about Mag 11 so right on the limit of my instrument. I kept going back and forth, I was in the right area as it is fairly next door to Basel 11B. I jiggled the binos about but I could not be certain. I will have another go when Orion is higher earlier in the night.

Berkerly 21

So that was it for me, Orion was setting so it was time for bed.ß