KIC 10905746 is a star located in the constellation Dragon . At least one planet orbits a star. The discovery of the planet was made by amateur astronomers as part of the Planet Hunters project.
| KIC 10905746 | |||
|---|---|---|---|
| Star | |||
| Research history | |||
| Discoverer | 2MASS | ||
| opening date | 2003 | ||
| Observational data ( Age J2000.0 ) | |||
| Type of | Single star | ||
| Right ascension | |||
| Declination | |||
| Distance | |||
| Visible magnitude ( V ) | 13.49 [1] | ||
| Constellation | The Dragon | ||
| Astrometry | |||
| Radial velocity ( R v ) | |||
| Own movement (μ) | RA: Dec: | ||
| Parallax (π) | |||
| Characteristics | |||
| Spectral class | Unknown | ||
| Variability | |||
| physical characteristics | |||
| Weight | 0.578 [1] M ☉ | ||
| Radius | 0.548 [1] R ☉ | ||
| Temperature | 4240 [1] K | ||
| Luminosity | 0,086 [1] L ☉ | ||
| Metallicity | [Fe / H] = - 0.23 [1] | ||
| Rotation | 1.1 km / s [1] | ||
| |||
| Database Information | |||
| SIMBAD | data | ||
| Sources: [3] | |||
Content
- 1 Features
- 2 Planetary system
- 3 See also
- 4 notes
- 5 Literature
- 6 References
Features
KIC 10905746 is a star of the main sequence 13 of visible magnitude, much smaller than our Sun in size and mass. For the first time in astronomical literature, it is mentioned in the 2MASS catalog, published in 2003 . The mass of the star is 57% of the solar, and the radius is 54%. [1] The surface temperature of the star is also significantly lower than solar, it is approximately 4240 Kelvin . The luminosity of a star is only 8% of solar luminosity.
Planet System
In 2011 , using the data obtained by the Kepler orbiting telescope, a group of amateur astronomers, as part of the Planet Hunters project, discovered [1] the planet KIC 10905746 b in this system. Unlike the SETI @ Home project, in Planet Hunters, participants are directly involved in data processing, tracking the signs of the presence of planets in the stars. The mass of the open planet is unknown, but its radius is 23% of the radius of Jupiter . She turns very close to the parent star - at a distance of 0.07 AU A year on it lasts less than ten days.
| Planet | Weight ( M J ) | Radius ( R J ) | Circulation period ( days ) | Semimajor axis orbits ( a.u. ) | Eccentricity orbits |
|---|---|---|---|---|---|
| b | - | 0.237 ± 0.06 | 9.8844 ± 0.0087 | 0.0751 ± 0.0014 | - |
See also
- Dragon constellation star list
Notes
- ↑ 1 2 3 4 5 6 7 8 9 Fischer, Schwamb, Schawinski et al., 2011 .
- ↑ 1 2 3 4 5 6 7 8 9 10 Collaboration G. Gaia DR2 - 2018 .-- T. 1345. - P. 0.
- ↑ SIMBAD . - KIC 10905746 in the SIMBAD database . Date of treatment May 1, 2012.
- ↑ S. Aigrain Stellar rotation periods of the Kepler Objects of Interest: a dearth of close-in planets around fast rotators // Astrophysical journal. Letters - IOP Publishing , 2013 .-- Vol. 775, Iss. 1. - P. 11. - ISSN 2041-8213 - doi: 10.1088 / 2041-8205 / 775/1 / L11
Literature
- Fischer D. A. , Schwamb M. E. , Schawinski K. et al. Planet Hunters: The First Two Planet Candidates Identified by the Public using the Kepler Public Archive Data // Mon. Not. R. Astron. Soc. / D. Flower - OUP , 2011 .-- Vol. 419, Iss. 4. - P. 2900–2911. - ISSN 0035-8711 ; 1365-2966 - doi: 10.1111 / j.1365-2966.2011.19932.x - arXiv: 1109.4621