Being a bit bored with all this cloud I did a bit of experimenting with old data.
I decided to combine my old DSLR data from 2011 with the luminance I got at Blacklands with the Atik383 in August 2013 and the Ha data I got from home in early 2014. I've struggled a bit in the past with combining Ha highlights in galaxies, but finally I got it to work.
DSLR was with the ED80 about 2 1/2 hours taken at High Halden
CCD was with the WOZS71 as was the Ha, 3h 20mins Ha + 1 h 40mins Lum
(http://cdn.astrobin.com/images/thumbs/aa0a3fe2312d311a259a8f28b2f26a52.1824x0_q100_watermark.jpg)
Looks great Carole, I've always struggled with this target. What were the sub durations?
Thanks Ivor.
QuoteWhat were the sub durations?
Now you're asking, I'll have to check all this old data and hopefully I kept a record..........
DSLR = 31 x 5mins
Lum = 12 x 500secs (no idea why I did 500secs)
Ha seems like I did various lengths, some were 600 secs some were 900secs and some were shorter (core?), I just used the final stack (whatever that was).
Carole
wow 5min RGB, I would have thought the core would have been saturated with that.
At least I have one picture for the presentation now!
Very nice & expertly processed. Out of interest what s/w did you use for combining/ aligning all the subs - I'm different fields of view from all the different cameras etc.
John
Ivor I would have done shorter subs for the core as well, I always do that with this target and also M42, it's just as it's 4 years ago I didn't record it all but it was most likely 30secs.
Thanks John. I always use Registar for registering the different filters and images using different cameras & scopes, it's a brill bit of software.
Combining filters and images I do manually in photoshop.
Carole