Leo

Overview

Leo (Leonis) — The Lion is one of the 88 modern constellations recognised by the International Astronomical Union.

Highlights

• ★The Sickle asterism
• ★The Leo Triplet of galaxies (M65, M66, NGC 3628)

Notable stars

53 catalogued stars in this encyclopedia.

• Algiebamag 2.01
• Zosmamag 2.56
• Ras Elased Australismag 2.97
• Chertanmag 3.33
• Adhaferamag 3.43
• Eta Leonismag 3.48
• Subramag 3.52
• Rho Leonismag 3.84
• Rasalasmag 3.88
• Iota Leonismag 4
• Sigma Leonismag 4.05
• 54 Leonismag 4.3

Deep-sky objects

• NGC 2903
• M 66
• NGC 3521
• M 96
• M 105
• M 65
• NGC 3628
• M 95
• NGC 3384
• NGC 3607
• NGC 3626

Meteor shower radiants

Neighbouring constellations

Knowledge connections

• IncludesRegulus
• ContainsMessier 65
• ContainsMessier 66
• ContainsMessier 95
• ContainsMessier 96
• ContainsMessier 105
• IncludesDenebola
• Associated withLeonids
• Constellation ofAlgieba
• Constellation ofZosma
• Constellation ofRas Elased Australis
• Constellation ofChertan
• Constellation ofAdhafera
• Constellation ofEta Leonis
• Constellation ofSubra
• Constellation ofRho Leonis
• Constellation ofRasalas
• Constellation ofIota Leonis
• Constellation ofSigma Leonis
• Constellation of54 Leonis
• Constellation ofUpsilon Leonis
• Constellation ofAlterf
• Constellation of31 Leonis
• Constellation of60 Leonis

Sources

The primary and reference sources this topic draws on.

• IAUInternational Astronomical Union

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