[AZ-Observing] Re: M16 - Hubble Palette

  • From: "David M. Douglass" <dmdouglass@xxxxxxxxxxxxxxx>
  • To: <az-observing@xxxxxxxxxxxxx>
  • Date: Mon, 22 Jul 2013 16:15:25 -0700

Mike... that is simply beautiful. Thank you for sharing.
I guess I did not realize you had a remote obs....
New Mexico ??

David M. Douglass
dmdouglass@xxxxxxxxxxxxxxx (secondary)
david@xxxxxxxxxxxxxxx (main)
Cell  (602) 908-9092

-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Mike Wiles
Sent: Monday, July 22, 2013 4:00 PM
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


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