Constellations

http://www.astro.wisc.edu/~dolan/constellations/constellation_list.html

http://www.astro.wisc.edu/~dolan/constellations/constellationmonth_list.html

http://en.wikipedia.org/wiki/List_of_constellations



Also useful:

http://www.astro.wisc.edu/~dolan/constellations/