Star profile

Mu Orionis

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

What is Mu Orionis

Mu Orionis shines quietly on the eastern flank of the Hunter, 155 light-years away, far from the splendour of Betelgeuse and Rigel. It is a white A-type star, young and hot, completing the outline of Orion's raised arm toward the winter Milky Way. Without the fanfare of its more famous siblings, it has held its place in the mythological tableau long before Mediterranean cultures drew the first star charts with ink and compass on parchment.

Where it is and when to see it

Mu Orionis 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 Mu Orionis

Constellation: Orion
Apparent magnitude: 4.12
Distance: 155.0 light years
Coordinates (J2000): RA 90.596° · Dec 9.647°
Catalogue: HIP 28614 · HD 40932

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

Other stars in Orion

Orion has 128 stars in Stelvia's catalogue. Here are a few of them.

See all 128 stars in Orion