My first deep-sky object!
Posted 08 July 2013 - 10:12 PM
This shot consists of 14 light frames and 5 darks, each consisting of a 30-second exposure at ISO 800.
Deep-sky imaging is certainly a different beast compared with planetary imaging. I'm excited to try again, next time with more light frames.
Full-size here: http://www.flickr.co...in/photostream/
Posted 09 July 2013 - 12:01 AM
Posted 09 July 2013 - 12:16 AM
Thanks for sharing.
Posted 09 July 2013 - 05:48 AM
Very well framed and processed.
I am looking forward to your 2nd DSO.
Posted 09 July 2013 - 09:39 AM
Posted 09 July 2013 - 09:44 AM
Posted 09 July 2013 - 04:48 PM
I'm going to need to read up on taking flats and bias frames. As far as the number of dark frames to take, is there a ratio to shoot for, say, one dark frame for every two light frames or something like that?
Posted 09 July 2013 - 05:37 PM
If you do darks wrong (wrong temperature, incorrect time, etc.) you could actually introduce more noise than you got rid of.
Posted 10 July 2013 - 08:19 AM
I'm using an unmodded camera, so I imagine I'll have the best luck with clusters and galaxies, huh? Still, I should be able to take decent shots of brighter nebula such as M27, right?
Posted 10 July 2013 - 09:54 AM
Furthermore I was using short subs (60s) since I was unguided at the time. So it isn't all together hopeless. It just depends on what level of quality you are willing to live with.
The more natural targets for an unmodded camera are as you mentioned galaxies and clusters, both open and globular. Reflection Nebula like the Merope Nebula in M45 will be fine too.
Posted 10 July 2013 - 11:35 AM
Posted 10 July 2013 - 12:00 PM
I think that Helix link is pointing to your Rosette image.
Doh. You're correct. I meant Rosette. I have changed the post.
Posted 10 July 2013 - 01:56 PM