Imaging telescopes or lenses: Astrotech 92 Triplet AT92mm f/5.5
Mounts: Orion Azeq Atlas pro
Guiding telescopes or lenses: ASTRO TECH AT66ED Guiding
Guiding cameras: ZWO ASI071MC PRO CMOS OSC
Focal reducers: Astro Tech Field flattener
Software: PixInsight · Stark Labs pHD guiding PHD2 · EQMOD, Stellarium, Stellarium Scope, PHD, Backyard EOS, Astro Tortilla Nebulosity 4
Filters: Zwo Filter Drawer · Optolong UV-IR
Accessory: Thousand Oaks Dew Controller · Pegasus Astro Dual Motor Focus Controller Cube focuser
Dates:Feb. 11, 2021 , Feb. 18, 2021
Frames:
Optolong L-eXtreme 2": 27x600" (gain: 90.00) -10C
Optolong UV-IR: 30x180" (gain: 90.00) -10C
Optolong UV-IR: 36x300" (gain: 90.00) -10C
Integration: 9.0 hours
Darks: ~30
Flats: ~20
Bias: ~50
Avg. Moon age: 17.75 days
Avg. Moon phase: 19.05%
Bortle Dark-Sky Scale: 5.00
Mean SQM: 18.48
Astrometry.net job: 4235523
RA center: 9h 55' 40"
DEC center: +69° 1' 7"
Pixel scale: 0.968 arcsec/pixel
Orientation: 39.216 degrees
Field radius: 1.315 degrees
Resolution: 6137x7618
Locations: Picket Post Bortle 4, Superior, Arizona, United States
Data source: Traveller
I wanted to image this object again to see if I could improve it. I think I succeeded. It's only 4.5 hours but from the dark site. I purposely Left the background on the lighter side to try and reveal the IFN in the region. I obviously need more time on it to show more of it. Getting colorful stars are difficult in this area, I'm thinking because of the nebulosity in the region. I am happy that I captured a lot of distant background Galaxies too, if you scan the lower half of the frame.
Description: Added 4.5 hours of L-eXtreme data. To bring out more of the H-a regions in M 81. Also reduced the stars a bit.
Uploaded: ...
Description: Cropped bad left edge
Uploaded: ...
Description: Made a colorMask to isolate the H-a region to give a boost of color and definition.
Uploaded: ...
| Arizona Astrophotographers |
| The OSC Club (One Shot Camera) |
| ASI 071 mcc |
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