Serpens is a Equatorial constellation otherwise known as the Serpent. It is one of the 48 Greek constellations originally described by the 2nd century astronomer Claudius Ptolemy (Wikipedia). Serpens remains one of the 88 modern constellations defined by the International Astronomical Union (Wikipedia).

Serpens (abbrev. = Ser; genitive = Serpentis) covers 637 square degrees or 1.54% of the celestial sphere making it the 23rd largest constellation. It contains 108 stars brighter than apparent magnitude 6.5, the brightest star being Unukalhai.

For more information see the entries for Serpens at Wikipedia and U. Wisconsin. For a chart of Serpens, see Ser (IAU).

AstroPixels Links

| Constellations Photo Gallery | Constellations List | Bright Stars Gallery | 50 Brightest Stars List |
 | Open Clusters | Globular Clusters | Diffuse Nebulae | Planetary Nebulae | Supernovae | Galaxies | 
 | Messier Catalog Photo Gallery | Messier Catalog | Caldwell Catalog Photo Gallery | Caldwell Catalog | 
 | AstroPixels Photo Index |