Star profile
25 Monocerotis
What is 25 Monocerotis
25 Monocerotis is an F6 giant classified as a Delta Scuti variable, a family of fast pulsators that oscillate on timescales of hours. It belongs to a visual multiple system and is receding from the Sun at 46 km per second. Its yellow-white light shines in the celestial Unicorn from 220 light-years, having set out shortly after the founding of Boston.
Where it is and when to see it
25 Monocerotis lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is January: 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 25 Monocerotis
- Constellation
- Monoceros
- Apparent magnitude
- 5.14
- Distance
- 220.3 light years
- Coordinates (J2000)
- RA 114.320° · Dec -4.111°
- Catalogue
- HIP 37088 · HD 61064
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Monoceros
Monoceros has 71 stars in Stelvia's catalogue. Here are a few of them.
- Beta Monocerotis3.76
- Alpha Monocerotis3.94
- Gamma Monocerotis3.99
- 10 Monocerotis5.06
- HIP 325585.08
- HIP 312785.09
- HIP 287445.19
- HIP 307175.19