Imaging telescopes or lenses: Astro-Tech AT10RCCF
Imaging cameras: QSI 640 wsg-8
Mounts: AP900GTO
Guiding telescopes or lenses: Astro-Tech AT10RCCF
Guiding cameras: starlight Xpress lodestar
Focal reducers: CCDT67
Software: Maxim DL5 · photoshop cs5 · FocusMax · bf-astro Excalibrator · CCD Commander · Foster systems Roof controller · ccdstack 2.0
Filters: Astrodon LRGB CCD Imaging Filters (I-Series) · Astrodon H-alpha 5nm
Dates:Feb. 12, 2015
Frames: 182x300"
Integration: 15.2 hours
Avg. Moon age: 22.49 days
Avg. Moon phase: 46.38%
Bortle Dark-Sky Scale: 5.00
Astrometry.net job: 616735
RA center: 9h 55' 34"
DEC center: +69° 4' 8"
Orientation: 89.432 degrees
Field radius: 0.441 degrees
Resolution: 2021x1989
Locations: Home Observatory, Glenwood, Maryland, United States
M81 from the backyard stretched just enough to show a hint of the surrounding IFN. I could stretch it further, but with the poor skies here it kind of muddies up the image further and detracts from the main event (m81). Seeing in the low 3s FWHM for most of it. Ha added at 32% of the red channel. Had a little bit of a flat issue on the far right side of the image.
Original image = Ha 10 x1200 1x1
Image B = LHaRGB
Image C - Enhanced the HII region in Holmberg IX area
Lum = 90 x 300 1x1
Red = 18 x 300 Red 2x2 + 10 x 1200 Ha (32%) 1x1
Green = 16 x 300 2x2
Blue = 18 x 300 2x2
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