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Cygnus is a northern constellation on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. [1] Cygnus is one of the most recognizable constellations of the northern summer and autumn, and it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross ).
61 Cygni / ˈ s ɪ ɡ n i / is a binary star system in the constellation Cygnus, consisting of a pair of K-type dwarf stars that orbit each other in a period of about 659 years. Of apparent magnitude 5.20 and 6.05, respectively, they can be seen with binoculars in city skies or with the naked eye in rural areas without light pollution.
Messier 39 or M39, also known as NGC 7092, is an open cluster of stars in the constellation of Cygnus, sometimes referred to as the Pyramid Cluster.It is positioned two degrees south of the star Pi Cygni [7] and around 9° east-northeast of Deneb. [8]
Tabby's Star in the constellation Cygnus is roughly halfway between the bright stars Deneb and Delta Cygni as part of the Northern Cross. [ 16 ] [ 17 ] It is situated south of 31 Cygni , and northeast of the star cluster NGC 6866 . [ 17 ]
Deneb (/ ˈ d ɛ n ɛ b /) is a first-magnitude blue supergiant star in the constellation of Cygnus. Deneb is one of the vertices of the asterism known as the Summer Triangle and the "head" of the Northern Cross. It is the brightest star in Cygnus and the 19th brightest star in the night sky, with an average apparent magnitude of +1.25.
Sh 2-106, [2] also known as the Celestial Snow Angel, is an emission nebula and a star formation region in the constellation Cygnus.It is a H II region estimated to be around 2,000 light years (600 pc) from Earth, in an isolated area of the Milky Way.
V404 Cygni is a microquasar and a triple star system in the constellation of Cygnus.It contains a black hole with a mass of about 9 M ☉ and an early K giant star companion with a mass slightly smaller than the Sun, and an evolved tertiary component.
Gamma Cygni (γ Cygni, abbreviated Gamma Cyg, γ Cyg), officially named Sadr / ˈ s æ d ər /, [11] [12] is a star in the northern constellation of Cygnus, forming the intersection of an asterism of five stars called the Northern Cross.