celestial chart, stars, constellations, night sky

constellations stars night sky astronomy celestial galaxy space universe cosmos astrology stargazing chart stellar nebulae astronomical cosmic dust deep galactic milky light years bodies star clusters open globular binary variable supergiants white dwarfs red giants main sequence apparent magnitude absolute spectral class parallax redshift blueshift evolution nucleosynthesis remnants supernovae black holes neutron pulsars quasars dark matter energy extraterrestrial life exoplanets