Constellations in the Sky Tonight
The constellations in tonight’s sky host many familiar star patterns. For northern observers, summer is the best time of the year to see the constellations… Read More »Constellations in the Sky Tonight
Arp 220
Arp 220 is an ultraluminous starburst galaxy located 250 million light years away in the constellation Serpens. The galaxy is the product of a collision… Read More »Arp 220
Mayall’s Object
Mayall’s Object is the product of a collision of two galaxies located approximately 450 million light years away in the constellation of Ursa Major (the… Read More »Mayall’s Object
Dark Horse Nebula
The Dark Horse Nebula is a large dark nebula complex located in the constellation Ophiuchus. Stretching across an area of 10 degrees, it is one… Read More »Dark Horse Nebula
Double Helix Nebula
The Double Helix Nebula is a gaseous nebula located approximately 25,000 light years from Earth in the constellation Ophiuchus. It lies in the direction of… Read More »Double Helix Nebula
Little Ghost Nebula (NGC 6369)
The Little Ghost Nebula is a planetary nebula located between 2,000 and 5,000 light years away in the equatorial constellation of Ophiuchus. The double-shell nebula… Read More »Little Ghost Nebula (NGC 6369)
Cotton Candy Nebula
The Cotton Candy Nebula (IRAS 17150-3224) is a protoplanetary nebula located in the southern constellation Scorpius. With an apparent size of only 16 arcseconds, it… Read More »Cotton Candy Nebula