M85 - A Lenticular Galaxy in Coma Berenices
Posted 25 June 2013 - 11:17 PM
High Resolution version and more image details available at http://www.astronome...php?c=113&p=500
This image was made from a stack of 115 x 5 minute subs (about 9 1/2 hours) at ISO 1600 taken with an orange tube Celestron C-8 at 1160mm (f/5.8) and a Gary Honis modified (Baader mod) Canon 450D. Guiding was with an ONAG On-axis guider, Lodestar autoguider, and Phd Guiding.
Thanks for looking!
Posted 26 June 2013 - 01:48 AM
Posted 26 June 2013 - 07:50 AM
Thanks for sharing,
Posted 28 June 2013 - 09:03 AM
Do you stack all 115 subs/darks at the same time?
Posted 28 June 2013 - 09:47 AM
Long integration time surelly pays off, do you have a permanently mounted detup Scott?
Posted 28 June 2013 - 12:46 PM
@Shawn - I usually stack each night separately, and often I end up with a couple of stacks (broken down to those focused for the center, those focused for the edges). I then align all my stacks with Registar, and then combine them with Photoshop (using masks to mask out the unfocused portion of each stack).
@Luis - yes, I have my mount setup on a permanent pier outside my house. Its not obvious from this picture, but the top of the pier is over 20' high.
Posted 29 June 2013 - 01:39 AM
Pretty deep shot for a Lenticular , excellent work once again Scott.