Star profile
31 Boötis
What is 31 Boötis
31 Boötis is a yellow giant 537 light-years away, swollen to 23 times the Sun's radius and pouring out nearly 275 times its light. Its G8 III type sits exactly where our Sun will stand in some five billion years: the same hue, the same calm transition into stellar old age. It glows quietly on the western flank of the Herdsman at magnitude 4.86, an aged, amplified echo of our own star.
Where it is and when to see it
31 Boötis lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is April: 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 31 Boötis
- Constellation
- Boötes
- Apparent magnitude
- 4.86
- Distance
- 537.4 light years
- Coordinates (J2000)
- RA 220.411° · Dec 8.162°
- Catalogue
- HIP 71832 · HD 129312
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Boötes
Boötes has 88 stars in Stelvia's catalogue. Here are a few of them.
- ArcturusAlpha Boötis-0.05
- IzarEpsilon Boötis2.35
- MuphridEta Boötis2.68
- 44 Boötis4.83
- 20 Boötis4.84
- HIP 703274.86
- 6 Boötis4.92
- 45 Boötis4.93