Tycho’s Supernova (SN 1572)
Tycho’s Supernova (3C 10, SN 1572) is a supernova remnant located approximately 8,000 to 9,800 light-years away in the constellation Cassiopeia. The supernova event that… Read More »Tycho’s Supernova (SN 1572)
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Fossil Footprint Nebula (NGC 1491)
The Fossil Footprint Nebula is an emission nebula located approximately 9,800 light-years away in the constellation Perseus. The nebula’s bright central portion has an angular… Read More »Fossil Footprint Nebula (NGC 1491)
Constellations in the Sky Tonight
The constellations in tonight’s sky host many familiar star patterns. For northern observers, early winter is the best time of the year to see Perseus,… Read More »Constellations in the Sky Tonight
Pandora’s Cluster (Abell 2744)
Pandora’s Cluster (Abell 2744) is a giant cluster of galaxies located approximately 4 billion light-years away in the constellation Sculptor. It has an angular size… Read More »Pandora’s Cluster (Abell 2744)
Circlet of Pisces
The Circlet of Pisces is a relatively faint asterism located in the western part of the constellation Pisces. The ring of seven stars represents the… Read More »Circlet of Pisces
Cheshire Cat Galaxy Group
The Cheshire Cat galaxy group (CSWA-2, SDSS J103842.59+484917.7) is a grouping of galaxies located approximately 4.6 billion light-years away in the northern constellation of Ursa… Read More »Cheshire Cat Galaxy Group
Comet Galaxy
The Comet Galaxy is a spiral galaxy located approximately 3.3 billion light-years away in the southern constellation Sculptor. It is a member of the galaxy… Read More »Comet Galaxy