astro.wikisort.org - Star
Kepler-296 is a binary star system[5] in the constellation Draco. The primary star appears to be a late K-type main-sequence star, while the secondary is a red dwarf.[2]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Draco |
| Right ascension | 19h 06m 09.602s[1] |
| Declination | +49° 26′ 14.37″[1] |
| Characteristics | |
| Spectral type | K7 V + M1 V[2] |
| Astrometry | |
| Proper motion (μ) | RA: 2.0[3] mas/yr Dec.: −8.0[3] mas/yr |
| Distance | 226.0+28.0 −18.0[4] pc |
| Details[5] | |
| Kepler-296 A | |
| Mass | 0.498+0.067 −0.087 M☉ |
| Radius | 0.480+0.066 −0.087 R☉ |
| Surface gravity (log g) | 4.774+0.091 −0.059 cgs |
| Temperature | 3740±130 K |
| Metallicity [Fe/H] | −0.08+0.28 −0.30 dex |
| Kepler-296 B | |
| Mass | 0.326+0.070 −0.079 M☉ |
| Radius | 0.322+0.060 −0.068 R☉ |
| Surface gravity (log g) | 4.993+0.087 −0.063 cgs |
| Temperature | 3440±75 K |
| Metallicity [Fe/H] | −0.08+0.28 −0.30 dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
| KIC | data |
Planetary system
![The following plot shows the approximate sizes of the planets in this system compared to planets in the Solar System.[7]](http://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Kepler296scale.png/220px-Kepler296scale.png)
Five exoplanets have been detected around the system; all are believed to be orbiting the primary star rather than its dimmer companion.[5] Two planets in particular, Kepler-296e and Kepler-296f, are likely located in the habitable zone.[5] For planetary system to remain stable, no additional giant planets can be located up to orbital radius 10.1 AU.[8]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | — | 0.079 | 10.864384 | 0.33 | — | 1.61 R🜨 |
| c | — | 0.0521 | 5.8416366 | 0.33 | — | 2.00 R🜨 |
| d | — | 0.118 | 19.850291 | 0.33 | — | 2.09 R🜨 |
| e | — | 0.169 | 34.14211 | 0.33 | — | 1.53 R🜨 |
| f | — | 0.255 | 63.33627 | 0.33 | — | 1.80 R🜨 |
See also
- Habitability of red dwarf systems
- List of potentially habitable exoplanets
References
- Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.
- Lissauer, Jack J; Marcy, Geoffrey W; Bryson, Stephen T; Rowe, Jason F; Jontof-Hutter, Daniel; Agol, Eric; Borucki, William J; Carter, Joshua A; Ford, Eric B; Gilliland, Ronald L; Kolbl, Rea; Star, Kimberly M; Steffen, Jason H; Torres, Guillermo (2014). "Validation Ofkepler's Multiple Planet Candidates. Ii. Refined Statistical Framework and Descriptions of Systems of Special Interest". The Astrophysical Journal. 784 (1): 44. arXiv:1402.6352. Bibcode:2014ApJ...784...44L. doi:10.1088/0004-637X/784/1/44. S2CID 119108651.
- Kepler Mission Team (2009). "VizieR Online Data Catalog: Kepler Input Catalog". VizieR On-line Data Catalog. 5133. Bibcode:2009yCat.5133....0K.
- "Kepler-296 e". exoplanet.eu. Retrieved 14 April 2021.
- Barclay, Thomas; Quintana, Elisa V; Adams, Fred C; Ciardi, David R; Huber, Daniel; Foreman-Mackey, Daniel; Montet, Benjamin T; Caldwell, Douglas (2015). "The Five Planets in the Kepler-296 Binary System All Orbit the Primary: A Statistical and Analytical Analysis". The Astrophysical Journal. 809 (1): 7. arXiv:1505.01845. Bibcode:2015ApJ...809....7B. doi:10.1088/0004-637X/809/1/7. S2CID 37742564.
- "Kepler-296". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 November 2017.
- "Open Exoplanet Catalogue - Kepler-296 b". www.openexoplanetcatalogue.com. Retrieved 2021-03-19.
- Becker, Juliette C.; Adams, Fred C. (2017), "Effects of Unseen Additional Planetary Perturbers on Compact Extrasolar Planetary Systems", Monthly Notices of the Royal Astronomical Society, 468 (1): 549–563, arXiv:1702.07714, Bibcode:2017MNRAS.468..549B, doi:10.1093/mnras/stx461, S2CID 119325005
External links
Constellation of Draco | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||
| Stars |
| ||||||||||||
| |||||||||||||
| |||||||||||||
| |||||||||||||
| Galaxies |
| ||||||||||||
| |||||||||||||
| |||||||||||||
 Category | |||||||||||||
 | This article about a red dwarf is a stub. You can help Wikipedia by expanding it. |
 | This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |
На других языках
[de] Kepler-296
Vorlage:Infobox Doppelstern/Wartung/RekDekSizeLeer- [en] Kepler-296
[ru] Kepler-296
Kepler-296 — одиночная звезда (красный карлик) в созвездии Дракона. Находится на расстоянии 1089 световых лет от Солнца[6].Текст в блоке "Читать" взят с сайта "Википедия" и доступен по лицензии Creative Commons Attribution-ShareAlike; в отдельных случаях могут действовать дополнительные условия.
Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
2019-2025
WikiSort.org - проект по пересортировке и дополнению контента Википедии
WikiSort.org - проект по пересортировке и дополнению контента Википедии