Mike GREAT picture!! Who needs the Hubble when you can get pictures like this. Joe Goss -----Original Message----- From: Mike Wiles Sent: Monday, July 22, 2013 15:59 To: AZ-Observing@xxxxxxxxxxxxx Subject: [AZ-Observing] M16 - Hubble Palette With a portable imaging rig and the difficulties that come with deep sky imaging during the monsoon season - M16 had always been at the top of my list of things to image. Until this year, I'd not been able to do it. Now that I have my equipment set up remotely, I was able to start imaging this target as soon as it was getting high enough above the horizon as far back as early May - even if it was just one frame per night. I was able to finish the image in mid-June and started processing. This image is a total of 37 hours of exposure time shot in the standard Hubble palette: Red = Sulfur II filter (3nm) - 12 exposures @ 60 minutes each Green = Hydrogen Alpha filter (3nm) - 13 exposures @ 60 minutes each Blue = Oxygen III filter (3nm) - 12 exposures @ 60 minutes each All images were captured with an Explore Scientific ED152CF f/8 triplet and an SBIG ST-8300 CCD camera in Benson, AZ. All image processing from calibration to final post-processing was done in PixInsight v1.8 RC7. I was really happy with the end result considering that by the time I took the last few frames, thermal noise was becoming an issue with the encroaching summer temperatures. Comments and criticisms are always welcomed. Thanks for looking. M16 - Small Image w/capture details <http://www.astrobin.com/46647/> M16 - Full Screen Sized Image <http://www.astrobin.com/full/46647/?mod=none> M16 - Full 8 megapixel resolution image<http://www.astrobin.com/full/46647/0/?mod=none&real=> Mike -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list. -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.