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View Full Version here: : NGC 4945 and surrounds..


Astroman
21-05-2007, 05:55 PM
Here is a pretty average pic of NGC 4945 and surrounding area. 25 frames @ ISO400 each 100s, bias, darks and flats applied. I think I may have induced some unwanted noise as I forgot to take the flats when the camera was still attached so its orientation may be off slightly..unguided. I think atmospheric seeing had a lot to do with the average images I was getting, as we had storms later that night and the air was pretty unstable. Some shots may have had cloud in them too. I did however manage to pull in a few 15th mag galaxies around 4945 which is good. I would like to try a longer exposure of this object as I feel it has alot more to show us. Pic is 80% cropped due to stacking rubbish on edges. Taken with a canon 400D and Berts 80mm ED refractor @ 450mm FL.

http://southcelestialpole.org.au/forum/index.php?action=dlattach;topic=374 1.0;attach=3981;image

h0ughy
21-05-2007, 06:55 PM
thats a great image Andrew, I like it

Ric
21-05-2007, 11:23 PM
A very nice image Andrew, the galaxies against a starry backdrop looks fantastic.

Cheers

ballaratdragons
21-05-2007, 11:44 PM
Cooool. One of my favourite Galaxies :thumbsup:

You have done a great job of imaging a wider field of 4945, Andrew. Top stuff :)

iceman
21-05-2007, 11:55 PM
I like these widefields, nice job.

It seems to be distinctly lacking in colour though - any reason why?

Astroman
22-05-2007, 06:18 AM
When I saturated it, it looked a pale pink in colour. I know this galaxy seems to chew up the blue as I have read in some write-ups on it. So I knocked it back so it wasn't quite as strong in colour. I also only did 100second exposures with very poor seeing conditions. I will try again when conditions get better, I will also autoguide on it and do longer exposures..

Garyh
22-05-2007, 08:52 AM
Good widefield Andrew!, longer subs and some good seeing will bring out more detail for you..same up here, still bad seeing with this jetstream.
CS and GS

Tamtarn
22-05-2007, 02:30 PM
Very nice widefield Andrew, well done. :thumbsup:

ballaratdragons
22-05-2007, 02:50 PM
Maybe it IS pink. My close-up of it came out Yellow/Brown.

I have no idea what colour it really is :shrug:

mick pinner
22-05-2007, 05:34 PM
very very nice Andrew.

Dr Nick
22-05-2007, 06:19 PM
You have some incredible detail in that shot!
Well done! ;)

tornado33
23-05-2007, 12:00 PM
Yes great shot, a rich starfield there too
Scott

EzyStyles
24-05-2007, 09:37 AM
very nice andrew. looks 3d.