Zeta Ophiuchi

1630 L ☉

Han is the proper name of the star ζ Ophiuchi (Zeta Ophiuchi ), the mag with an apparent magnitude of 2.54 Place 92 of the brightest stars in the night sky occupies. It lies just south of the celestial equator, so it is in Europe only in the summer months visible. Han is about 460 light years distant from Earth, hot main sequence star of spectral type O9 V, the absorbent because of the amount of light interstellar dust that lies between him and the earth, reddish appear. In fact, Han would appear much brighter and are among the brightest stars, his light would not weakened by this layer of dust. Han has about half of its stellar development behind it and will puff up in the next few million years to a supergiant before he will end his life in a supernova (type II).