Search found 609 matches

by GeorgeC
Mon Jun 13, 2016 1:47 pm
Forum: General chat
Topic: DSO Browser - Astronomy planner
Replies: 1
Views: 1401

Re: DSO Browser - Astronomy planner

This looks very useful - an enormous amount of work has gone into it!
I will investigate further.
by GeorgeC
Sun Jun 12, 2016 1:26 pm
Forum: General chat
Topic: progressive astro imaging
Replies: 1
Views: 1778

progressive astro imaging

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...
by GeorgeC
Fri Sep 06, 2013 8:53 am
Forum: Gallery
Topic: UFO
Replies: 17
Views: 2346

Re: UFO

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...
by GeorgeC
Thu Sep 05, 2013 4:42 pm
Forum: Gallery
Topic: UFO
Replies: 17
Views: 2346

Re: UFO

Seeing the uncropped image would be useful.
by GeorgeC
Fri Aug 16, 2013 11:17 pm
Forum: Gallery
Topic: The Nova in Delphinus
Replies: 1
Views: 748

The Nova in Delphinus

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

Image

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

Image
by GeorgeC
Wed Jul 10, 2013 10:46 am
Forum: Gallery
Topic: Satellite or meteor?
Replies: 3
Views: 725

Re: Satellite or meteor?

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.

Image
by GeorgeC
Wed Jul 10, 2013 8:27 am
Forum: Gallery
Topic: Satellite or meteor?
Replies: 3
Views: 725

Satellite or meteor?

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...
by GeorgeC
Wed Mar 13, 2013 7:59 pm
Forum: Gallery
Topic: C/2011 L4 (PANSTARRS)
Replies: 7
Views: 1575

C/2011 L4 (PANSTARRS)

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...
by GeorgeC
Sat Feb 16, 2013 4:11 pm
Forum: Gallery
Topic: Asteroid 2012 DA14
Replies: 9
Views: 1238

Re: Asteroid 2012 DA14

The 63.6 is the length of the trail in arc seconds, so yes, it would cover about 3 arc minutes in a minute.
by GeorgeC
Sat Feb 16, 2013 3:11 pm
Forum: Gallery
Topic: Asteroid 2012 DA14
Replies: 9
Views: 1238

Re: Asteroid 2012 DA14

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...
by GeorgeC
Sat Feb 16, 2013 12:30 pm
Forum: Gallery
Topic: Asteroid 2012 DA14
Replies: 9
Views: 1238

Re: Asteroid 2012 DA14

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

Image
by GeorgeC
Fri Feb 15, 2013 11:28 pm
Forum: Gallery
Topic: Asteroid 2012 DA14
Replies: 9
Views: 1238

Asteroid 2012 DA14

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.

Image
by GeorgeC
Tue Nov 06, 2012 2:40 pm
Forum: General chat
Topic: The Bahtinov Grabber author
Replies: 2
Views: 1161

The Bahtinov Grabber author

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...
by GeorgeC
Wed Jun 06, 2012 5:38 am
Forum: Gallery
Topic: Venus transit from London 05.42am
Replies: 9
Views: 1859

Re: Venus transit from London 05.42am

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.)
by GeorgeC
Mon Mar 26, 2012 10:34 pm
Forum: Gallery
Topic: Peculiar flash in ngc2264
Replies: 2
Views: 593

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...