Star profile
Upsilon Ursae Majoris
Variable starWhat is Upsilon Ursae Majoris
Upsilon Ursae Majoris is a yellow-white F-type star 116 light-years away, sitting near the muzzle of the Great Bear, just west of the famous Plough. It is a Delta Scuti variable: pulsing on a rhythm of a few hours, swelling and contracting as its light travels to us. With the naked eye it stays modest, near the edge of city skies, yet it belongs to a family of oscillators that have helped astronomers take the inner pulse of stars and calibrate distances across our own galaxy.
Where it is and when to see it
Upsilon Ursae Majoris 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.
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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
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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 Upsilon Ursae Majoris
- Constellation
- Ursa Major
- Apparent magnitude
- 3.78
- Distance
- 116.3 light years
- Coordinates (J2000)
- RA 147.748° · Dec 59.039°
- Catalogue
- HIP 48319 · HD 84999
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Ursa Major
Ursa Major has 124 stars in Stelvia's catalogue. Here are a few of them.
- AliothEpsilon Ursae Majoris1.76
- DubheAlpha Ursae Majoris1.81
- AlkaidEta Ursae Majoris1.85
- AlkaphrahKappa Ursae Majoris3.57
- 23 Ursae Majoris3.65
- TaiyangshouChi Ursae Majoris3.69
- Zeta Ursae Majoris3.95
- Alcor3.99