Viewing Report 22nd July 2020 – IMT3

21:28 – 23:24

I opened the dome at 8:30pm and then went off to do some more work. A few calls later and it was time to come back and see if I could grab comet C/2020 F3 NEOWISE which had now moved further West and further in altitude over the past week, meaning it should be visible from the dome. Below is Arcturus as I performed a quick sync.


Below you can see Arcturus on The Sky X with the dome slit showing and the obstructions from the horizon also present.


Comet NEOWISE can be seen just above next doors tree.


A quick peek with the camera and I could just make out the comet.

Quick peek of the comet but clouds

Clearly more clouds rolled in which is typical

More clouds!

Looking at the cameras in the dome I could see the cloud bank of cloud (picture top right)

Cloud bank approaching

Fortunately the comet could be seen at the back of the cloud bank.

45 second exposure of Comet C/2020 F3 NEOWISE

So I set about quickly taking some images before the comet disappeared behind the tree.

90 second exposure of Comet C/2020 F3 NEOWISE

The other useful thing tonight was using the monitoring GingerGeek put together. Below are a selection of shots from the website.

IMT3 Conditions

The chart below shows the light cloud cover and the sky temperature is representative of the sky clarity and relates to cloud coverage too. The scale is inverted to -18℃ is a cloudless beautifully clear night sky, which tonight was not!

IMT Conditions Summary – Fisherprice style 🙂

At least there was no rain 🙂

IMT3 Rain Radar

This image below shows the cloud bank just North West of Reading that was a problem.

IMT3 Cloud Cover

This next chart is from the data produced by the AAG CloudWatcher weather station. Note the sky temperature is nowhere near the -18℃ to be clear.

IMT3 AAG Cloudwatcher weather station

And finally the all sky cam just as I packed up showing the clouds clearing

IMT3 All Sky Camera

Viewing Report 17th July 2020 – IMT3

22:05 – 02:00

Crop of M57 in Ha 600s 12″

Tonight I thought I would take some more images of M57 through the 12″ in OIII and then Ha. I first got the OIII filter focused at position 62,500 with a temperature of 22.42℃, I took 10 more images at 600 seconds.

Guiding was good even though there was high level cloud, seeing was good

Ha was then started at 00:44 after meridian flip. I spent some time looking at comet C/2020 F3 NEOWISE through 100mm binoculars with Helen, Ezri and her boyfriend Luke. Then we took some photos with the 50mm lens on the 6D.

Comet C/2020 F3 NEOWISE

I went to bed at 2am and left it running. In the morning I noticed I had 10 good images then the image moved due to guiding problems due to cloud.

Full frame 600s Ha M57