Star profile
18 Andromedae
Hot blue starWhat is 18 Andromedae
18 Andromedae is a hot blue B-type star burning at temperatures far above the Sun's, set in the field of Andromeda, an angular neighbour of the famous spiral galaxy that shares the constellation's name. Its blue-white hue betrays cosmic youth and considerable mass. At 421 light-years, its light departed around 1605, crossing space just as Cervantes had finished publishing the first part of Don Quixote in Madrid.
Where it is and when to see it
18 Andromedae lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is October: 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 18 Andromedae
- Constellation
- Andromeda
- Apparent magnitude
- 5.35
- Distance
- 421.4 light years
- Coordinates (J2000)
- RA 354.785° · Dec 50.472°
- Catalogue
- HIP 116709 · HD 222304
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Andromeda
Andromeda has 81 stars in Stelvia's catalogue. Here are a few of them.
- MirachBeta Andromedae2.07
- AlpheratzAlpha Andromedae2.07
- AlmachGamma 1 Andromedae2.10
- 32 Andromedae5.30
- HIP 103665.31
- 62 Andromedae5.31
- 55 Andromedae5.42
- 11 Andromedae5.44