M42 Orion Nebula

The Orion Nebula (also known as Messier 42M42, or NGC 1976) is a diffuse nebula situated in the Milky Way, being south of Orion’s Belt in the constellation of Orion.[b] 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[3][6] 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.[7]

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.[8] 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.

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M42 Orion Nebula

Techincal card of image

Imaging telescopes or lenses: Celestron Evolution 8HD Edge Celestron
Imaging cameras: ZWO ASI522mc-pro color ZWO
Mounts: Celestron motorized altazimuth fork arm Celestron Mount
Focal reducers: Hyperstar Edge HD8
Software: Adobe Photoshop 2021  ·  PixInsight 1.8 Ripley PinInsight 1.8.8
Filters: : Optlong L-Extreme Optolong

Dates:May 11, 2021
Frames: 20×90″ (30′)
Integration: 30′
Avg. Moon age: 29.26 days
Avg. Moon phase: 0.08%

RA center: 05h35m21s.8
DEC center: -05°1637
Pixel scale: 1.988 arcsec/pixel
Orientation: 191.803 degrees
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Resolution: 2916×2908
Locations: Gamaholjad, Fareham, United Kingdom
Data source: Backyard

Observation data: J2000 epoch
Subtype Reflection/Emission[2]
Right ascension 05h 35m 17.3s[1]
Declination −05° 23′ 28″[1]
Distance 1,344±20 ly   (412[3] pc)
Apparent magnitude (V) +4.0[4]
Apparent dimensions (V) 65×60 arcmins[5]
Constellation Orion
Physical characteristics
Radius 1.2[a] ly
Absolute magnitude (V)
Notable features Trapezium cluster
Designations NGC 1976, M42,
LBN 974, Sharpless 281