HD 16760 is a double star located in the constellation Perseus at a distance of about 150 light-years from us. At least one planet orbits a star.
| HD 16760 | |||
|---|---|---|---|
| Star | |||
| Observational data ( Age J2000.0 ) | |||
| Right ascension | |||
| Declination | |||
| Distance | 49.6 pc | ||
| Visible magnitude ( V ) | 8.7 | ||
| Constellation | Perseus | ||
| Astrometry | |||
| Radial velocity ( R v ) | -4.2 [1] km / s | ||
| Own movement (μ) | RA: 82.84 [1] Dec: -110.65 [1] | ||
| Parallax (π) | 19.93 [1] ± 2.81 [1] mas | ||
| Absolute magnitude (V) | 5.41 [4] | ||
| Characteristics | |||
| Spectral class | G5VD [1] | ||
| Color Index ( B - V ) | 0.715 [4] | ||
| physical characteristics | |||
| Weight | 0.78 ± 0.05 [4] M ☉ | ||
| Radius | 0.81 ± 0.27 [4] R ☉ | ||
| Temperature | 5629 ± 44 [4] K | ||
| Luminosity | 0.72 ± 0.43 [4] L ☉ | ||
| Metallicity | [Fe / H] = + 0.067 ± 0.05 [4] | ||
| Rotation | 0.5 ± 0.5 km / s [4] | ||
| |||
| Database Information | |||
| SIMBAD | data | ||
| Sources: [1] | |||
Features
HD 16760 consists of two components. The main star ( HIP 12638 ) is a yellow dwarf of the main sequence with mass and radius equal to 0.78 and 0.81 solar, respectively. The second component ( HIP 12635 ) has a spectral class of K3.5 and is drawn at a distance of 660 a. e. from the main component.
HD 16760 belongs to the moving star group AB Gold Fish , whose average age is estimated at 50 million years.
Planet System
In 2009, the planet HD 16760 b was independently discovered in the HD 16760 system by a group of astronomers using the SOPHIE program, [5] as well as the N2K consortium. [4] The large mass of the planet (13 masses of Jupiter ) makes it close in its characteristics to brown dwarfs . However, its orbit is close to circular, which indicates its origin from the circumstellar disk, which is characteristic of planets. In general, its nature is not yet completely clear. A planet makes a complete revolution around a star in 466 days. The distance of HD 16760 b to the parent star is approximately equal to the distance of the Earth to the Sun: 1.08 a. e.
| Planet | Weight ( M J ) | Radius ( R J ) | Circulation period ( days ) | Semimajor axis orbits ( a.u. ) | Eccentricity orbits |
|---|---|---|---|---|---|
| b | > 13.13 ± 0.56 | ? | 466.47 ± 0.35 | 1,084 ± 0,023 | 0.084 ± 0.003 |
Notes
- ↑ 1 2 3 4 5 6 7 SIMBAD (English) . - HD 16760 in the SIMBAD database . Date of treatment November 30, 2009.
- ↑ 1 2 3 4 Gaia Data Release 2 - 2018.
- ↑ 1 2 3 4 AGK3
- ↑ 1 2 3 4 5 6 7 8 9 Bunei Sato, Debra A. Fischer, Shigeru Ida, Hiroki Harakawa, Masashi Omiya, John A. Johnson, Geoffrey W. Marcy, Eri Toyota, Yasunori Hori, Howard Isaacson, Andrew W. Howard , Kathryn MG Peek. A Substellar Companion in a 1.3 yr Nearly-circular Orbit of HD 16760 . Arxiv.org (Jul 29, 2009). Date of treatment November 30, 2009.
- ↑ F. Bouchy, G. Hebrard, S. Udry, X. Delfosse, I. Boisse, et al. The SOPHIE northern extrasolar planets. I. A companion close to the planet / brown-dwarf transition around HD16760 . Arxiv.org (21 Jul 2009). Date of treatment November 30, 2009.
See also
- List of stars constellation Perseus
- List of exoplanets discovered in 2009