HD 192263

HD 192263 is a star of the eighth grade brightness in the constellation Aquila. There is a main sequence star of spectral type K0. The star is therefore a little cooler and a little less bright than our sun. With very good binoculars and telescopes, the star at night is easy to spot. HD 192263 is a BY Draconis variables.

Again and again, discoveries of companions of the star were announced, but could not be confirmed in retrospect. The fact that the star practically located on the equatorial plane of the Earth, may have contributed to this. Since 1999, however, it is clear that HD 192263 is surrounded by at least one planet.

HD 192263 b

Main article: HD 192263 b

Because of the large number of newly discovered planets this no longer get proper names (ie, not as Mars, Jupiter, etc. For example, the name of a god ) are newly discovered objects numbered alphabetically. Therefore, the companion of the star is called simply "b ", ie HD 192263 b.

The mass of the companion is found at least three quarters of the mass of Jupiter, its almost circular orbit around the star takes about 24 days. The distance to the star is about 0.15 AU, which is significantly smaller than the distance of the earth to the sun.

Credentials

• Santos et al.: The CORALIE survey for Southern extra- solar planets - III. A giant planet in orbit around HD 192263 Add: . Astronomy and Astrophysics. 356, 2000, pp. 599-602.
• Vogt et al.: Six New Planets from the Keck Precision Velocity Survey. In: The Astrophysical Journal. 536, No. 2, 2000, pp. 902 - 914
• Henry et al.: A False Planet around HD 192263 Add: . The Astrophysical Journal. 577, No. 2, 2002, pp. L111 - L114.
• Santos et al.: The CORALIE survey for southern extra- solar planets - XI. . The return of the giant planet orbiting HD 192263 In: Astronomy and Astrophysics. 406, 2003, pp. 373-381.