All stars but one can be associated with an IAU constellation. IAU constellations are areas of the sky. Although there are only 88 IAU constellations, the sky is actually divided into 89 irregularly shaped boxes as the constellation Serpens is split into two separate sections, Serpens Caput (the snake's head) to the west and Serpens Cauda (the snake's tail) to the east.
The only star that does not belong to a constellation is the Sun. The Sun travels through the 13 constellations along the ecliptic, the 12 of the Zodiac and Ophiuchus.
Lists of stars by constellation 
Stars are listed in the appropriate lists for the constellation, as follows:
Criteria of inclusion 
- Sixth magnitude stars or brighter (V < 6.50).
- Stars named with a Bayer, Flamsteed, or Gould designation.
- Notable variable stars (prototypes, rare or otherwise important).
- Nearest stars.
- Stars with planets.
- Notable neutron stars, black holes, and other exotic stellar objects.
See also 
- The Astronomical Almanac (2000).
- Roy L. Bishop, ed., The Observer's Almanac 1991, The Royal Astronomical Society of Canada.
- Burnham's Celestial Handbook: An Observer's Guide to the Universe Beyond the Solar System, Vols. 1, 2, 3 (Dover Pubns, 1978).
- N.D. Kostjuk, HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index (2002) (CDS Catalogue IV/27).
External links