The Tulip Nebula (Sharpless 101) is an emission nebula located in Cygnus constellation. It lies at an approximate distance of 6,000 light years from Earth and has an apparent magnitude of 9.0. It occupies an area of 16 x 9 arc minutes of apparent sky and has a linear diameter of about 70 light years. … [Read more…]
The Gamma Cygni Nebula, also known as the Sadr Region or IC 1318, is a diffuse emission nebula that can be seen around Sadr (Gamma Cygni), the star at the center of the Northern Cross, which marks the heart of Cygnus, the Swan. Despite the name, the star and the nebula are unrelated. Even though … [Read more…]
The Crescent Nebula is an emission nebula located in the constellation Cygnus. It has an apparent magnitude of 7.4 and lies at an approximate distance of 5,000 light years from Earth. The nebula occupies an area of 18 x 12 arc minutes of apparent sky. It has the designation NGC 6888 in the New General … [Read more…]
The Soap Bubble Nebula is a planetary nebula located near the larger and better known Crescent Nebula (NGC 6888) in the constellation Cygnus. Notable for its spherical symmetry, the faint nebula looks like a transparent soap bubble set against the rich stars fields of the Northern Cross region. It is catalogued as PN G75.5+1.7. The … [Read more…]
The Pelican Nebula is an emission nebula located near the bright star Deneb in the constellation Cygnus, the Swan. Named for its resemblance to a pelican, the nebula is associated with the neighbouring North America Nebula (NGC 7000) and is one of several notable nebulae found in the area of the Northern Cross. It is … [Read more…]
The Great Square of Pegasus is an asterism formed by three bright stars in Pegasus constellation – Markab, Scheat and Algenib – and Alpheratz in the neighbouring constellation Andromeda. For northern observers, the asterism is particularly prominent in the summer months, when it can be seen high overhead in the evening.