Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Flame Nebula  ·  Great Orion Nebula  ·  IC 431  ·  IC 432  ·  IC 434  ·  IC 435  ·  Lower Sword  ·  M 42  ·  M 43  ·  Mairan's Nebula  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  NGC 2023  ·  NGC 2024  ·  Orion B  ·  Orion Nebula  ·  The star 42Ori  ·  The star 45Ori  ·  The star Alnitak (ζOri)  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri  ·  The star σOri  ·  Upper Sword  ·  the Running Man Nebula
Orion Nebular Complex, Giuseppe Donatiello
Orion Nebular Complex
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Orion Nebular Complex

Orion Nebular Complex, Giuseppe Donatiello
Orion Nebular Complex
Powered byPixInsight

Orion Nebular Complex

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Description

Alnitak, The Flame, Horsehead and Orion Nebulae

Credit: Giuseppe Donatiello

RA: 05h 40m 45.52666s Dec: −01° 56′ 342649″

Alnitak (Zeta Orionis, 50 Ori) is a triple star system at 736 light-years. The primary (Alnitak A) is itself a close binary, comprising Alnitak Aa and Alnitak Ab discovered in 1998. Alnitak B is a B-type star which orbits Alnitak A every 1500 years. A fourth star, Alnitak C, has not been confirmed to be part of the Aa-Ab-B group.

The Horsehead Nebula (Barnard 33) is a dark nebula in Orion. The nebula is located at south of the star Alnitak, on Orion's Belt, as part of the much larger Orion Molecular Cloud Complex.

The Horsehead Nebula is at 1500 light-years and is one of the most identifiable nebulae.

RA 05h 35m DEC −05° 23

Popularly called the Orion Nebula, this stellar nursery is only 1,500 light-years away, making it the closest large star-forming region to Earth.

Because of its brightness and prominent location just below Orion’s belt, M42 can be spotted with the naked eye under very dark skies.

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Orion Nebular Complex, Giuseppe Donatiello

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