Star profile

45 Aurigae

3D likeness based on its real data · class F · ~6,500 K

What is 45 Aurigae

45 Aurigae sits 193 light-years away, within the figure of the Charioteer of the northern winter sky. What looks like a single yellow-white point is in fact a tight spectroscopic binary: two stars complete a circular orbit in just 6.5 days, far too close to be split apart with any telescope. The visible primary, of class F, is slightly heavier and far more luminous than the Sun, a steady fire over a billion years old.

Where it is and when to see it

45 Aurigae 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: 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 45 Aurigae

Constellation: Auriga
Apparent magnitude: 5.34
Distance: 193.1 light years
Coordinates (J2000): RA 95.442° · Dec 53.452°
Catalogue: HIP 30247 · HD 43905

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

Other stars in Auriga

Auriga has 76 stars in Stelvia's catalogue. Here are a few of them.

See all 76 stars in Auriga