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.

Aug 11, 2023 · 61 Cygni is a double star in the constellation Cygnus the Swan. It’s not a standout in brightness. Why go to the trouble of finding it? Stars are individuals, and there’s something interesting...

61 Cygni is a binary star system in the constellation Cygnus. The system consists of a pair of K-type dwarf stars that orbit each other in a period of about 659 years. The stars have an apparent magnitude of 5.20 and 6.05, respectively.

61 Cygni is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 61 Cygni double sysyem: 61 Cygni is distant 11.42 light years from the Sun and it is moving towards the …

61 Cygni, first star whose distance from Earth was measured. German astronomer Friedrich Wilhelm Bessel obtained a value of 10.3 light-years in 1838; the European Space Agency satellite Hipparcos made much more accurate distance measurements than ground-based telescopes had accomplished and obtained a distance to 61 Cygni of 11.4 light-years.

Aug 19, 2023 · 61 Cygni is a bright double star in the constellation Cygnus. It’s best viewed in summer and early autumn. This double star is undoubtedly intriguing as it lies a mere 11 lightyears away.

61 Cygni was the first star system (other than the Sun) to have its distance to Earth successfully calculated by Friedrich Wilhelm Bessel (1784-1846) using trigonometric parallax and the diameter of the Earth's orbit around the Sun in 1838. Smaller and dimmer than Sol, the stars are barely visible with the naked eye.

Jun 3, 2015 · Our second featured star, 61 Cygni, is one of summer's best and brightest double stars — a gorgeous pair of orange-red dwarfs (magnitudes 5.2 and 6.0) located 11.4 light-years away in Cygnus. 61 Cygni shines with a combined magnitude of 6.2 and forms the fourth corner of a parallelogram made with Deneb, Gamma, and Epsilon Cygni.

Sep 1, 2017 · We now know that 61 Cygni is a pair of orange (type K) main sequence stars, both of which are smaller, cooler, and older than our Sun. The primary sun, 61 Cygni A, shines at magnitude 5.2, while 61 Cygni B shines at magnitude 6.0.

61 Cygni is a binary star system in the constellation Cygnus. It has the seventh highest proper motion of all stellar systems listed in the modern Hipparcos Catalogue.