Star profile

Tau Geminorum

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

What is Tau Geminorum

Tau Geminorum is an orange K giant 321 light-years away, set apart by something uncommon: she has a confirmed planet. Tau Geminorum b, announced in 2013, is a gas giant of about twenty Jupiter masses circling her once every 305 days. She is one of those systems that remind us almost every visible star hides a court of invisible worlds, silent, indifferent to whoever watches them.

Where it is and when to see it

Tau 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.

Find it on the sky map

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The signature wall

Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.

A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works

If you don't have an account yet, we'll ask for an email to confirm it's you: we send you a link and that's it, no password.

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 Tau Geminorum

Constellation: Gemini
Apparent magnitude: 4.41
Distance: 321.1 light years
Coordinates (J2000): RA 107.785° · Dec 30.245°
Catalogue: HIP 34693 · HD 54719

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