Star profile
39 Ursae Majoris
What is 39 Ursae Majoris
39 Ursae Majoris shines white as an A-type star in the Great Bear, the immense figure whose dipper has guided generations of observers toward Polaris. Hotter and more luminous than the Sun, it offers the bluish sharpness characteristic of A-class stars. From 370 light-years, the light arriving tonight set out around 1656, when Christiaan Huygens was discovering Saturn's rings with a telescope he had built himself in The Hague.
Where it is and when to see it
39 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 February: 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 39 Ursae Majoris
- Constellation
- Ursa Major
- Apparent magnitude
- 5.79
- Distance
- 369.8 light years
- Coordinates (J2000)
- RA 160.931° · Dec 57.199°
- Catalogue
- HIP 52478 · HD 92728
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
- HIP 523385.74
- 22 Ursae Majoris5.77
- HIP 459155.79
- HIP 599205.80
- 71 Ursae Majoris5.82