Star profile

57 Geminorum

3D likeness based on its real data · class G · ~5,500 K

What is 57 Geminorum

57 Geminorum is a yellow G8 giant well past its youth: swollen to about seven times the Sun's radius, it shines roughly thirty times brighter from 159 light-years away. It surfaces at magnitude 5.04 on the eastern edge of Gemini, where Castor and Pollux command the stage. Around 1.2 billion years old, it has burned through its core hydrogen and begun the slow expansion of maturity.

Where it is and when to see it

57 Geminorum lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is January: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.

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The signature wall

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Write my signature

A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.

Astronomical data for 57 Geminorum

Constellation: Gemini
Apparent magnitude: 5.04
Distance: 159.0 light years
Coordinates (J2000): RA 110.869° · Dec 25.051°
Catalogue: HIP 35846 · HD 57727

A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.

Other stars in Gemini

Gemini has 74 stars in Stelvia's catalogue. Here are a few of them.

See all 74 stars in Gemini