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The fifth star in Cygnus above magnitude 3 is Aljanah, [18] designated ε Cygni. It is an orange-hued giant star of magnitude 2.5, 72 light-years from Earth. [20] [21] There are several other dimmer double and binary stars in Cygnus. μ Cygni is a binary star with an optical tertiary component. The binary system has a period of 790 years and is ...
See also. List of stars in Cygnus. Appearance. This is the list of notable stars in the constellation of Cygnus, sorted by decreasing apparent magnitude. Name. B. F. Var. HD.
Deneb (/ ˈdɛnɛb /) 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.
Albireo is the star in the head of the constellation of Cygnus (bottom). β Cygni (Latinised to Beta Cygni) is the system's Bayer designation. The brighter of the two components is designated β¹ Cygni or Beta Cygni A and the fainter β² Cygni or Beta Cygni B. The origin of the star system's traditional name Albireo is unclear.
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] While only a few arcminutes away from the cluster, it is unrelated and closer to the Sun than it is to the star ...
120 × 100 arcmin [3] Constellation. Cygnus. Designations. NGC 7000, Sharpless 117, Caldwell 20. See also: Lists of nebulae. The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). It is named because its shape resembles North America.
Gamma Cygni (γ Cygni, abbreviated Gamma Cyg, γ Cyg), officially named Sadr / ˈsædər /, [11][12] is a star in the northern constellation of Cygnus, forming the intersection of an asterism of five stars called the Northern Cross. Based upon parallax measurements obtained during the Hipparcos mission, it is approximately 1,800 light-years ...
data. Delta Cygni (δ Cygni, abbreviated Delta Cyg, δ Cyg) is a binary star of a combined third-magnitude in the constellation of Cygnus. It is also part of the Northern Cross asterism whose brightest star is Deneb. Based upon parallax measurements obtained during the Hipparcos mission, Delta Cygni is located roughly 165 light-years (51 ...