Star profile

Lambda Geminorum

3D likeness based on its real data · class A · ~8,500 K

What is Lambda Geminorum

Lambda Geminorum is a white A-type star living some hundred light-years away, close by cosmic standards. It marks one of the knots in the body of the twins Castor and Pollux, almost midway between the brothers. When Gemini rises over the winter horizon, its light —warm, barely tinted— quietly traces the silhouette of the story.

Where it is and when to see it

Lambda 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, when it culminates around midnight.

From London it culminates about 55° above the horizon.
From New York it culminates about 66° above the horizon.
From Sydney it culminates about 40° above the horizon.

It can be seen from anywhere north of 73° S.

It ranks no. 11 in brightness among the 74 stars of Gemini in our catalogue. To find it, start from Pollux, the brightest: it lies about 13° away (a fist at arm's length covers about 10°).

The light you see today left it about 100 years ago.

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Astronomical data for Lambda Geminorum

Constellation: Gemini
Apparent magnitude: 3.58
Distance: 100.9 light years
Coordinates (J2000): RA 109.523° · Dec 16.540°
Catalogue: HIP 35350 · HD 56537

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Other stars in Gemini

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

See all 74 stars in Gemini