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Constellation

Gemini

Gemini (Gem) is one of the 88 constellations recognised by the International Astronomical Union. Its brightest star is Pollux (magnitude 1.16).

Latin nameGemini
AbbreviationGem
Brightest starPollux
Stars in this encyclopedia227
Stars with exoplanets25
Deep-sky objects62
Galaxies49

In the sky

Visible from the whole Northern Hemisphere and south to latitude 66° S. North of latitude 66° N it never sets. It stands highest at midnight in January, the best time to observe it.

Its brightest stars

  • Pollux 1.16 · 33.8 light-years
  • Castor 1.58 · 50.9 light-years
  • Alhena 1.93 · 109.3 light-years
  • Castor B 2.85 · 51.6 light-years
  • Tejat 2.87 · 231.6 light-years
  • Mebsuta 3.06 · 870.3 light-years
  • Propus 3.31 · 689.4 light-years
  • Alzirr 3.35 · 60.2 light-years
  • Wasat 3.50 · 60.7 light-years
  • κ Gem 3.57 · 147.6 light-years
  • λ Gem 3.58 · 100.0 light-years
  • θ Gem 3.60 · 193.3 light-years
  • ι Gem 3.78 · 135.8 light-years
  • Mekbuda 4.01 · 1,061 light-years
  • υ Gem 4.06 · 253.3 light-years
  • ν Gem 4.13 · 733.4 light-years
  • 1 Gem 4.16 · 155.1 light-years
  • ρ Gem 4.16 · 58.9 light-years
  • σ Gem 4.23 · 120.3 light-years
  • τ Gem 4.41 · 391.7 light-years
  • 30 Gem 4.49 · 314.2 light-years
  • 38 Gem 4.73 · 96.2 light-years
  • Jishui 4.89 · 168.7 light-years
  • 81 Gem 4.89 · 310.4 light-years
  • χ Gem 4.94 · 255.9 light-years

Its stars with exoplanets

Deep-sky objects

Galaxies

Its other stars