Kepler-12 is a star located in the constellation Dragon at a distance of about 1956 light years from us. At least one planet orbits a star.
| Kepler-12 | |||
|---|---|---|---|
| Star | |||
| Research history | |||
| Discoverer | Hipparcos | ||
| opening date | 1997 | ||
| Observational data ( Age J2000.0 ) | |||
| Type of | Single star | ||
| Right ascension | |||
| Declination | |||
| Distance | 1956 St. years (600 pc ) | ||
| Visible magnitude ( V ) | 13.44 | ||
| Constellation | The Dragon | ||
| Astrometry | |||
| Own movement (μ) | RA: 1.0 mas per year Dec: -10.2 mas per year | ||
| Parallax (π) | 0.354 mas | ||
| Specifications | |||
| Spectral class | G0 | ||
| physical characteristics | |||
| Weight | 1.166 ± 0.054 M ☉ | ||
| Radius | 1.483 ± 0.029 R ☉ | ||
| Age | 4 ± 0.4 billion years | ||
| Temperature | |||
| Luminosity | 8.30 L ☉ | ||
| Metallicity | [Fe / H] = + 0.07 ± 0.04 | ||
| Rotation | 0.8 ± 0.5 km / s -1 | ||
| |||
| Database Information | |||
| SIMBAD | data | ||
| Sources: [3] | |||
Planet System
| Planet | Weight ( M J ) | Radius ( R J ) | Circulation period ( days ) | Semimajor axis orbits ( a.u. ) | Eccentricity orbits |
|---|---|---|---|---|---|
| b | 0.431 ± 0.041 | 1.695 ± 0.032 | 4.43796 | 0.0556 ± 0.0007 | 0.01 |
See also
- Dragon constellation star list
- Kepler-12b
Notes
- ↑ 1 2 3 4 Gaia Data Release 2 - 2018.
- ↑ 1 2 The California-Kepler Survey. I. High-resolution spectroscopy of 1305 stars hosting Kepler transiting planets // Astron. J. / J. G. III - IOP Publishing , 2017 .-- ISSN 0004-6256 ; 1538-3881 - doi: 10.3847 / 1538-3881 / aa80de
- ↑ SIMBAD . - Kepler-12 in the SIMBAD database . Date of appeal October 12, 2012.