Castor

Gemini · Gem · α Gem · HR 2891 · HIP 36850 · magnitude 1.98

From its ancient Greek name Κάστωρ, a character in Greek mythology, the twin of Pollux (β Gem). Reapplied in Renaissance times.

Astronomy

Official IAU information

Designation

HR 2891

HIP

36850

Bayer ID

α Gem

Visual magnitude

1.98

Right ascension (J2000)

113.649°

Declination (J2000)

31.8883°

IAU adoption

2016/06/30

Name origin

From its ancient Greek name Κάστωρ, a character in Greek mythology, the twin of Pollux (β Gem). Reapplied in Renaissance times.