Hemisphere:  Southern  ·  Contains:  41 the01 Ori  ·  42 c Ori  ·  43 the02 Ori  ·  44 iot Ori  ·  45 Ori  ·  De Mairan's nebula  ·  Great Orion Nebula  ·  Hatysa  ·  IC 420  ·  Lower Sword  ·  M 42  ·  M 43  ·  M43  ·  Mairan's Nebula  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  NGC1973  ·  NGC1975  ·  NGC1977  ·  NGC1980  ·  NGC1981  ·  Orion Nebula  ·  Sh2-279  ·  Sh2-281  ·  The star 42Ori  ·  And 8 more.
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M42 & NGC 1977, 


            Joey Troy
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M42 & NGC 1977

Imaging telescopes or lenses: William Optics Redcat 51

Imaging cameras: Nikon D5500

Mounts: Sky-Watcher EQM 35 Pro

Guiding telescopes or lenses: ZWO 30mm f/4 Mini Guide Scope

Guiding cameras: ZWO ASI 120 Mini Mono

Software: PixInsight

Accessory: ZWO ASiair pro  ·  ZWO EAF

Dates:Dec. 2, 2020Dec. 4, 2020Dec. 5, 2020Dec. 10, 2020

Frames: 81x300" ISO200

Integration: 6.7 hours

Flats: ~60

Bias: ~60

Avg. Moon age: 19.93 days

Avg. Moon phase: 69.78%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 4136514

RA center: 5h 35' 2"

DEC center: -5° 5' 21"

Pixel scale: 3.273 arcsec/pixel

Orientation: -4.479 degrees

Field radius: 1.428 degrees

Resolution: 2189x2254

Locations: Backyard, Belen, NM, United States

Data source: Backyard


The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated in the Milky Way, being south of Orion's Belt in the constellation of Orion. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. It is 1,344 ± 20 light-years (412.1 ± 6.1 pc) away and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across. It has a mass of about 2,000 times that of the Sun. Older texts frequently refer to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula.

The Orion Nebula is one of the most scrutinized and photographed objects in the night sky, and is among the most intensely studied celestial features. The nebula has revealed much about the process of how stars and planetary systems are formed from collapsing clouds of gas and dust. Astronomers have directly observed protoplanetary disks and brown dwarfs within the nebula, intense and turbulent motions of the gas, and the photo-ionizing effects of massive nearby stars in the nebula.



Joey Troy
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M42 & NGC 1977, 


            Joey Troy

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