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HD 185351 is a star in the constellation of Cygnus, the swan.With an apparent visual magnitude of 5.17, [1] it is faintly visible to the naked eye on a dark night. Based on parallax measurements, HD 185351 is located at a distance of 134 light years from the Sun. [2]
HD 191612 is a binary star system in the northern constellation of Cygnus, the swan. Based on parallax measurements, it is located at a distance of 6,100 light years from the Sun . It has an apparent visual magnitude of 7.81, [ 1 ] which is too faint to be readily visible with the naked eye, requiring a small telescope to view.
At this temperature, the star glows with the yellow hue of a G-type star. [12] The secondary component, ζ Cyg B, is a white dwarf of type DA4.2. The pair orbit each other every 6,489 days (17.8 years) with an eccentricity of 0.22. The white dwarf cannot be seen directly, but is estimated to have an apparent magnitude of 13.2. [3]
The fifth star in Cygnus above magnitude 3 is Aljanah, [23] designated ε Cygni. It is an orange-hued giant star of magnitude 2.5, 72 light-years from Earth. [25] [26] 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 ...
SS Cygni is a variable star in the northern constellation Cygnus (the Swan). It was discovered in 1896 by Louisa D. Wells, a computer working under Edward Pickering at Harvard College Observatory . [ 7 ] [ 8 ] It is the prototype of the subclass of dwarf novae that show only normal eruptions.
The Northern Cross is an astronomical asterism in the northern hemisphere of the celestial sphere, corresponding closely with the constellation Cygnus the swan. It is much larger than the Southern Cross and consists of the brightest stars in Cygnus: Deneb , Sadr , Gienah , Delta Cygni and Albireo .
Kepler-27 is a star in the northern constellation of Cygnus, the swan. It is located at the celestial coordinates: Right Ascension 19 h 28 m 56.81962 s, Declination +41° 05′ 09.1405″. [2] With an apparent visual magnitude of 15.855, [3] this star is too faint to be seen with the naked eye.
Kepler-22 is a Sun-like star in the northern constellation of Cygnus, the swan, that is orbited by at least 1 planet found to be unequivocally within the star's habitable zone. It is located at the celestial coordinates : Right Ascension 19 h 16 m 52.2 s , Declination +47° 53′ 3.9″. [ 2 ]