Star profile

28 Geminorum

3D likeness based on its real data · class K · ~4,200 K

What is 28 Geminorum

28 Geminorum is an orange K4III giant about 476 light-years away, in the winter sky's Twins. Its radius is more than thirty-eight times the Sun's; its luminosity, almost four hundred times greater. It is also variable: its brightness drifts very slowly, like a cosmic breath. It pulls away from us at nearly fifteen kilometres per second, slipping toward the deep silence of interstellar space.

Where it is and when to see it

28 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 December, when it culminates around midnight.

From London it culminates about 67° above the horizon.
From New York it culminates about 78° above the horizon.
From Sydney it culminates about 27° above the horizon.

It can be seen from anywhere north of 61° S.

It ranks no. 43 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 480 years ago.

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Astronomical data for 28 Geminorum

Constellation: Gemini
Apparent magnitude: 5.42
Distance: 476.2 light years
Coordinates (J2000): RA 101.189° · Dec 28.971°
Catalogue: HIP 32311 · HD 48450

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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