A total of 88 constellations are recognized by the International Astronomical Union (IAU). Each constellation is a region of the sky, bordered by arcs of right ascension and declination. Together they cover the entire celestial sphere, with their boundaries adopted officially by the International Astronomical Union in 1928 and published in 1930.
Although the constellations are 88, you will find the Serpens constellation split into two regions.
Clck on the constellation names to view more about each constellation.
