Well I now have almost twice the amount of image data on the Antennae that I did before. As far as a practical test of using ISO1600 to maximise SNR, I think the results here speak for themselves. I am very happy with this result
The final tally comes in at:
Day 1: 67 x 180s ISO1600 subs (ambient temps of about 10-14C)
Day 2: 53 x 240s ISO1600 subs (ambient temps of about 8-13C)
Day 3: 47 x 180s ISO1600 subs (ambient temps of about 10-13C)
Day 3 continued: 49 x 240s ISO1600 subs (ambient temps of about 7-10C)
I have uploaded a "widefield", a close-in crop, and just for laughs a comparison with Hubble's famous image of this galaxy pair
Processed with Pixinsight. Hi res image here:
http://www.astrobin.com/full/40910/?mod=none
As always, feedback welcome
