Star profile
HIP 21743
What is HIP 21743
In Eridanus, the long celestial river, glows a yellow sun whose light set out around 1675, when Newton had not yet published the Principia and modern science was taking root. More luminous and somewhat hotter than our own star, it feels like an elder sibling of the Sun. Its golden glow rests upon a constellation that winds across the sky like a stream without banks.
Where it is and when to see it
HIP 21743 lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is November: 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 21743
- Constellation
- Eridanus
- Apparent magnitude
- 5.56
- Distance
- 350.4 light years
- Coordinates (J2000)
- RA 70.028° · Dec -24.482°
- Catalogue
- HIP 21743 · HD 29737
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Eridanus
Eridanus has 129 stars in Stelvia's catalogue. Here are a few of them.
- AchernarAlpha Eridani0.45
- CursaBeta Eridani2.78
- AcamarTheta 1 Eridani2.88
- 5 Eridani5.56
- HIP 167805.56
- 25 Eridani5.56
- HIP 162635.57
- HIP 173955.59