Orion

Overview

Orion (Orionis) — The Hunter is one of the 88 modern constellations recognised by the International Astronomical Union.

Highlights

• ★The Orion Nebula (M42)
• ★The three-star Belt of Orion
• ★Betelgeuse and Rigel

Notable stars

69 catalogued stars in this encyclopedia.

• Hatysamag 2.75
• Tabitmag 3.19
• Eta Orionismag 3.35
• Meissamag 3.39
• Tau Orionismag 3.59
• 3 Orionismag 3.68
• 8 Orionismag 3.71
• Sigma Orionismag 3.77
• 9 Orionismag 4.06
• 40 Orionismag 4.09
• Mu Orionismag 4.12
• 29 Orionismag 4.13

Deep-sky objects

• Lower Sword
• Great Orion Nebula
• Upper Sword
• NGC 1788
• NGC 2169
• NGC 1662
• NGC 2175
• NGC 1973
• NGC 1975
• M 78
• NGC 2071
• NGC 2194
• NGC 2186
• Mairan's Nebula
• NGC 2180
• NGC 2112
• NGC 2141
• NGC 1999
• Flame Nebula
• Monkey Head Nebula
• the Running Man Nebula

Meteor shower radiants

Mythology

Neighbouring constellations

Knowledge connections

• IncludesBetelgeuse
• IncludesRigel
• ContainsOrion Nebula
• Associated withOrionids
• ContainsMessier 42 (Orion Nebula)
• ContainsMessier 43 (De Mairan's Nebula)
• ContainsMessier 78
• ContainsFlame Nebula (NGC 2024)
• IncludesBellatrix
• IncludesMintaka
• IncludesAlnilam
• IncludesAlnitak
• IncludesSaiph
• Constellation ofHatysa
• Constellation ofTabit
• Constellation ofEta Orionis
• Constellation ofMeissa
• Constellation ofTau Orionis
• Constellation of3 Orionis
• Constellation of8 Orionis
• Constellation ofSigma Orionis
• Constellation of9 Orionis
• Constellation of40 Orionis
• Constellation ofMu Orionis

Sources

The primary and reference sources this topic draws on.

• IAUInternational Astronomical Union

  Official naming, definitions, constellation boundaries, and astronomical nomenclature.