Imaging telescopes or lenses: Borg 90FL
Imaging cameras: ZWO ASI 183MM Pro
Mounts: Celestron AVX Mount
Guiding telescopes or lenses: Agena Astro 50mm f/3.9 Guidescope
Guiding cameras: ASI224MC
Focal reducers: Borg 0.72X Quadruplet Super Reducer, #7872
Software: IDEIKI AstroPhotography Tool (APT) · Stark Labs Nebulosity 4.2 · Digital Photo Professional · Annie's Astro Actions V7 · Noel Carboni's Astro Tools for PhotoShop Noel Carboni Actions · SharpCap Pro 3.2
Filters: Astronomik 6nm OIII · Optolong 7nm Ha 2"
Dates:Jan. 11, 2019 , Jan. 12, 2019
Frames:
Astronomik 6nm OIII: 25x300" (gain: 100.00) -15C bin 1x1
Optolong 7nm Ha 2": 30x300" (gain: 100.00) -15C bin 1x1
Integration: 4.6 hours
Darks: ~24
Avg. Moon age: 5.30 days
Avg. Moon phase: 28.67%
Bortle Dark-Sky Scale: 4.00
Temperature: -3.50
Astrometry.net job: 2467978
RA center: 5h 40' 40"
DEC center: -2° 27' 25"
Pixel scale: 1.361 arcsec/pixel
Orientation: 88.585 degrees
Field radius: 0.730 degrees
Resolution: 2490x2950
Data source: Traveller
The Horsehead Nebula (Barnard 33) is a dark nebula in the constellation Orion. The nebula is located just to the south of Alnitak, the easternmost star of Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. The nebula was first recorded in 1888 by Scottish astronomer Williamina Fleming on a photographic plate taken at the Harvard College Observatory. The Horsehead Nebula is approximately 1500 light years from Earth and 3.5 light years across.
Comments