Star profile
Sigma Serpens
What is Sigma Serpens
Sigma Serpentis glimmers just 89 light-years away, a near neighbour within Serpens —the only constellation split in two by the figure of Ophiuchus. A yellow-white F-type star, slightly hotter and more luminous than the Sun, it belongs to the Caput, the serpent's head. Its proximity makes it well suited for detailed study, even if its apparent brightness remains modest.
Where it is and when to see it
Sigma Serpens lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is May: 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.
It opens in your browser. Free, no account, nothing to install.
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
If you don't have an account yet, we'll ask for an email to confirm it's you: we send you a link and that's it, no password.
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 Sigma Serpens
- Constellation
- Serpens
- Apparent magnitude
- 4.82
- Distance
- 89.0 light years
- Coordinates (J2000)
- RA 245.518° · Dec 1.029°
- Catalogue
- HIP 80179 · HD 147449
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Serpens
Serpens has 65 stars in Stelvia's catalogue. Here are a few of them.
- UnukalhaiAlpha Serpens2.63
- Eta Serpens3.23
- Mu Serpens3.54
- AlyaTheta 1 Serpens4.62
- Rho Serpens4.74
- Pi Serpens4.82
- Alya BTheta 2 Serpens4.98
- 5 Serpens5.04