Star profile
HIP 21847
What is HIP 21847
A nearby yellow star in Perseus, cosmic cousin of the Sun. Its light crossed just 104 years before reaching us: it set off in the midst of World War I, when Einstein was presenting his general theory of relativity. A G-class star, it shares the golden hue of our daytime body and burns in silence, far closer than most stars dare to be.
Where it is and when to see it
HIP 21847 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.
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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 HIP 21847
- Constellation
- Perseus
- Apparent magnitude
- 5.97
- Distance
- 104.0 light years
- Coordinates (J2000)
- RA 70.459° · Dec 38.280°
- Catalogue
- HIP 21847 · HD 29645
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Perseus
Perseus has 99 stars in Stelvia's catalogue. Here are a few of them.
- MirfakAlpha Persei1.79
- AlgolBeta Persei2.09
- Zeta Persei2.84
- HIP 202415.95
- HIP 85985.96
- HIP 153345.97
- HIP 152415.98
- 7 Persei5.99