16 Cygni Bb or HD 186427 b is an extrasolar planet approximately 69 light-years (21 parsecs) away in the constellation of Cygnus. The planet was discovered...

16 Cygni A and 16 Cygni B, together with a red dwarf, 16 Cygni C. In 1996 an extrasolar planet was discovered in an eccentric orbit around 16 Cygni B...

observable universe becomes more modern looking. 6.2 billion years (7.7 Gya): 16 Cygni Bb, the first gas giant observed in a single star orbit in a trinary star...

temperatures analogous to Venus, ruling out any potential for liquid water. 16 Cygni Bb, also discovered in 1996, has an extremely eccentric orbit that spends...

Kepler-16b). A few dozen planets in triple star systems are known (e.g. 16 Cygni Bb) and two in quadruple systems Kepler 64 and 30 Arietis. The Kepler results...

first known planet in a triple star system – for example, the planet 16 Cygni Bb had been discovered earlier, orbiting one of the components of a wide...

16 Cygni. The first exoplanet around a main sequence star was discovered in 51 Pegasi the previous year. The celestial bodies that revolve around 16 Cygni...

discovered a second Neptune-like exoplanet in 2022 orbiting at 95 days. 16 Cygni Bb Meschiari, Stefano; et al. (2011). "The Lick-Carnegie Survey: Four New...

followed by a lowercase letter for the planet. Examples are 16 Cygni Bb and HD 178911 Bb. Planets orbiting the primary or "A" star should have 'Ab' after...

Year Distance (ly) Host star mass (M☉) Host star temp. (K) Remarks 16 Cygni Bb 2.38 799.5 1.66 radial vel. 1996 68.99 1.04 5750 23 Librae b 1.61 258...

approximately 0.2665 AU at apastron. Its eccentricity is about the same as 16 Cygni Bb, a so-called "eccentric Jupiter". Until 2009, HD 17156 b was the transiting...

July 2005. A previously discovered planet around a triple star system, 16 Cygni Bb, orbits a wide system, while HD 188753 Ab, if it exists, orbits a system...

KY Cygni is a red supergiant of spectral class M3.5Ia located in the constellation Cygnus. It is approximately 4,700 light-years away. KY Cyg lies near...

778.101 2.070 0.2109 2011 HD 85390 b 0.132 788.118 1.523 0.4145 2009 16 Cygni Bb 1.679 799.483 1.691 0.6886 1996 HD 200964 c 0.900 825.112 1.943 0.1811...

apparent magnitude ranging from 0.05 to 0.18. It is classified as an Alpha Cygni variable due to the amplitude and periodicity of its brightness variation...

motion of any star visible to the unaided eye, after Groombridge 1830 and 61 Cygni, and the ninth highest overall. This motion will move the star into the...

Ritter Bessel". Astronomische Nachrichten (in German). 16 (5–6): 65–96. Bibcode:1838AN.....16...65B. doi:10.1002/asna.18390160502. (page 92) Ich bin daher...

1 (or Icarus) — second most distant star, 9 billion light years away. P Cygni — suddenly brightened in the 17th century WNC4 — Messier Object 40 Zeta...

1839 after Bessel released his own accurately determined parallax for 61 Cygni in 1838. For this reason, Alpha Centauri is sometimes considered as the...

) planets: b (Ægir), c? 61 Cygni (11.4039±0.0012 ly) K-type main-sequence star B Epsilon Indi (11.8670±0.0041 ly) 2 T-type brown dwarfs: Ba, Bb planet Ab M-type...

discovered in 2001, the second found in a triple system after that of 16 Cygni. One of the most-studied exoplanets in the night sky is TrES-1b, in orbit...

are active flare stars, and the pair are collectively designated V1581 Cygni. The largest of the three stars, G208-44 A (GJ 1245 A) is only 11% the Sun's...

Goodricke gave the correct explanation of its variability in 1784. Chi Cygni was identified in 1686 by G. Kirch, then R Hydrae in 1704 by G. D. Maraldi...

) planets: b (Ægir), c? 61 Cygni (11.4039±0.0012 ly) K-type main-sequence star B Epsilon Indi (11.8670±0.0041 ly) 2 T-type brown dwarfs: Ba, Bb planet Ab M-type...

and, when Bessel published a parallax of 0.314″ for the star system 61 Cygni, Struve revised his value for Vega's parallax to nearly double the original...

designations mark them as variable stars. Examples include R Cygni, RR Lyrae, and V1331 Cygni. The International Astronomical Union delegates the task to...

different second planet was discovered, also given the designation "c". 16 Cygni 30 Arietis List of stars in Leo Vallenari, A.; et al. (Gaia collaboration)...

Jupiter masses and average separations spanning between 0.05 and 5.2 AU. 61 Cygni Barnard's Star List of nearest stars and brown dwarfs van Leeuwen, F. (November...

) planets: b (Ægir), c? 61 Cygni (11.4039±0.0012 ly) K-type main-sequence star B Epsilon Indi (11.8670±0.0041 ly) 2 T-type brown dwarfs: Ba, Bb planet Ab M-type...

two vertices are marked by Deneb and Vega. It is located at a distance of 16.7 light-years (5.1 parsecs) from the Sun.: 194  Altair is currently in the...