Society for Popular Astronomy

This looks very useful - an enormous amount of work has gone into it!
I will investigate further.

Anyone know what happened to www.progressiveastroimaging.com? I am guessing that the site has been hacked. I cannot fathom the mentality that would do this. http://www.rochesterastronomy.org has also been hacked recently which is appalling. David Bishop does a huge amount of work there at his own co...

Thanks David. Did it drift right across the sky in a straight line? Did it maintain the same apparent speed? Did it maintain the same position. ie, no tumbling or rotating? The bulginess of it looks like something inflated. A polystyrene sack would rotate and flap about. I checked the internet for a...

Seeing the uncropped image would be useful.

Lots of cloud to battle with but some images of the recent Nova:



With a bit of colour added. Clouds prevented more RGB frames being taken.

Thanks Stella and Brian.
I could not find it in Calsky when I tried at 1am this morning, but located it after Stella's post.
It is slightly off from the predicted path.

Last night my scope was pointed at ngc5466 when I recorded this: http://geoastro.co.uk/july2013/ngc5466-002GB.jpg The exposure was 600 seconds. Started at 22:59:07 UTC Green filter. Coordinates of ngc5466 are RA 14 05 27 DEC+28 32 04 Location of observatory 52.33706 N 2.07252 W I had a look at Calsk...

It was very difficult to get. The sky was still bright and I scanned the area with binoculars until I spotted it very low down between bands of clouds. I could not use my 'big' telescope because my house is in the way so I employed a small Skywatcher with my Canon 350D camera. The problem was that t...

The 63.6 is the length of the trail in arc seconds, so yes, it would cover about 3 arc minutes in a minute.

Hello David, I plate solved an image from the middle of the sequence to get accurate coordinates. The start is shown here: http://geoastro.co.uk/february2013/start.jpg I put the start and end coords into this calculator: http://geoastro.co.uk/spreadsheets/angsep.htm The result: http://geoastro.co.uk...

I am in Bromsgrove.
The skies cleared after midnight and it was much easier to capture.
This is a sequence of 20second shots, starting at :00h 19m 04s

Awful cloudy sky but I managed to capture it through the clouds. This is an animation of three 20 second shots.
Time 21:02:35 for first shot. The small galaxy is ngc 4346.

I have just been to Niels Noordhoek's site where the 'Bahtinov Grabber' was available, only to see the very sad news that he is no longer with us. Niels wrote this superb bit of software and made it available to us for free. I often suggested to him that he charged a small price for it but he always...

Superb! The clouds add a lot to the image - we will be seeing thousands of 'clear' images that will get tedious after a while.
(We were clouded out in Birmingham.)

Hello David, The frame was 10 minutes, at 20:00:50 I have done a bit more thinking and I suspect that it is an unusual event such as a cosmic ray hitting the ccd perpendicularly. Maxim shows the brightest pixel in the object is 63608, whereas in a star with the same apparent magnitude the maximum is...