RSGC1-F01 is a red supergiant star located approximately 22,000 light-years away in the constellation Scutum. With an estimated radius of 1,450 to 1,530 solar radii, it is one of the largest stars known. The supergiant is member of the massive young star cluster RSGC1. Discovered in 2006, the cluster and its members are invisible to the unaided eye and cannot be seen in optical telescopes.| Star Facts
Delta Scuti (δ Sct) is a yellow-white giant located 201 light years away in the constellation Scutum. The star serves as the prototype for a class of variable stars known as the Delta Scuti variables.| Star Facts
Cepheus is a large constellation in the northern sky. It represents King Cepheus in Greek mythology. It is home to the large stars VV Cephei and the Garnet Star (Mu Cephei), the Wizard Nebula and the Fireworks Galaxy.| www.constellation-guide.com
Dorado is a small, faint constellation located in the far southern sky. It represents the dolphinfish or swordfish. The constellation contains most of the Large Magellanic Cloud, a satellite galaxy of the Milky Way.| www.constellation-guide.com
Monoceros is a relatively faint northern constellation located between Canis Major and Canis Minor. It is home to the famous variable star V838 Monocerotis, the open cluster Messier 50, and the Rosette Nebula.| www.constellation-guide.com
The Lobster Nebula (War and Peace Nebula, NGC 6357) is a large emission nebula located approximately 5,900 light-years away in the constellation Scorpius. It hosts some of the most massive stars in the Milky Way galaxy| www.constellation-guide.com
Rho Cassiopeiae (ρ Cas) is a yellow hypergiant located 3,425 light-years away in the constellation Cassiopeia. It is one of the most luminous stars known, with an energy output more than 300,000 times that of the Sun.| Star Facts
R136a1 is a Wolf-Rayet star located approximately 163,000 light-years away in the constellation Dorado. It is one of the most massive and luminous stars known.| Star Facts
V838 Monocerotis (Nova Monocerotis 2002) is a red supergiant located approximately 19,200 light-years away in the constellation Monoceros. It was the first star to be classified as a luminous red nova.| Star Facts
Betelgeuse, Alpha Orionis (α Ori), is a red supergiant star and supernova candidate located 548 light-years away in the constellation Orion. Marking the Hunter's shoulder, it is one of the most recognizable stars in the night sky.| Star Facts
Sirius, Alpha Canis Majoris (α CMa), is the brightest star in the sky. The Sirius star system lies at a distance of 8.6 ly from Earth in the constellation Canis Major. It can be found using the stars of Orion's Belt.| Star Facts
Alpha Centauri (α Cen) is a triple star system located at a distance of 4.37 light years from Earth in the constellation Centaurus. It is the nearest star system to the Sun and hosts the nearest extrasolar planets to Earth.| Star Facts
Alderamin, Alpha Cephei (α Cep), is a white main sequence star located at a distance of 49.05 light years from Earth in the constellation Cepheus.| Star Facts