Kepler-15
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Cygnus[1] |
| Right ascension | 19h 44m 48.1365s[2] |
| Declination | +49° 08′ 24.298″[2] |
| Apparent magnitude (V) | 13.8[3] |
| Characteristics | |
| Evolutionary stage | subgiant[2] |
| Spectral type | G8IV-V[4] |
| Astrometry | |
| Proper motion (μ) | RA: −2.755(15) mas/yr[2] Dec.: −12.129(17) mas/yr[2] |
| Parallax (π) | 1.3181±0.0139 mas[2] |
| Distance | 2,470 ± 30 ly (759 ± 8 pc) |
| Details | |
| Mass | 1.018 +0.052 −0.044[5] M☉ |
| Radius | 0.992 +0.070 −0.058[5] R☉ |
| Luminosity | 0.82[5] L☉ |
| Surface gravity (log g) | 4.32±0.1[6] cgs |
| Temperature | 5,679±50[6] K |
| Metallicity | 0.36±0.07[5] |
| Rotational velocity (v sin i) | 2.0[5] km/s |
| Age | 3.7[5] Gyr |
| Other designations | |
| KOI-128, KIC 11359879, 2MASS J19444814+4908244, Gaia DR2 2134850847813263360[7][8][9] | |
| Database references | |
| SIMBAD | data |
| KIC | data |
Kepler-15 (also known as KOI-128 or KIC 11359879 is a G-type subgiant with a mass of 1.018 solar masses and a radius of 1.253 solar radius.
Planetary system
[edit]Kepler-15 is orbited by one known planet named Kepler-15b, a hot jupiter enriched in heavy elements. It was discovered by the transit method in 2011.[3]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination (°) |
Radius |
|---|---|---|---|---|---|---|
| b | 0.66±0.09 MJ | 0.05714±0.00093 | 4.942782±1.3e-06 | — | 87.44±1.5 | 0.96±0.07 RJ |
References
[edit]- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
- 1 2 3 4 5 6 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- 1 2 "The Extrasolar Planet Encyclopaedia — Catalog Listing". Extrasolar Planets Encyclopaedia. 2011-08-02. Archived from the original on 2012-01-21. Retrieved 2013-02-28.
- ↑ Frasca, A.; Molenda-Żakowicz, J.; De Cat, P.; Catanzaro, G.; Fu, J. N.; Ren, A. B.; Luo, A. L.; Shi, J. R.; Wu, Y.; Zhang, H. T. (2016). "Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra". Astronomy and Astrophysics. 594. arXiv:1606.09149. Bibcode:2016A&A...594A..39F. doi:10.1051/0004-6361/201628337.
- 1 2 3 4 5 6 Endl, Michael; et al. (2011). "Kepler-15b: A Hot Jupiter Enriched in Heavy Elements and the First Kepler Mission Planet Confirmed with the Hobby-Eberly Telescope". The Astrophysical Journal Supplement Series. 197 (1). 13. Bibcode:2011ApJS..197...13E. doi:10.1088/0067-0049/197/1/13. hdl:2152/42925.
- 1 2 Buchhave, Lars A.; Bitsch, Bertram; Johansen, Anders; Latham, David W.; Bizzarro, Martin; Bieryla, Allyson; Kipping, David M. (2018), "Jupiter Analogs Orbit Stars with an Average Metallicity Close to That of the Sun", The Astrophysical Journal, 856 (1): 37, arXiv:1802.06794, Bibcode:2018ApJ...856...37B, doi:10.3847/1538-4357/aaafca, S2CID 119332645
- ↑ "Kepler-15". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-08-09.
- 1 2 Borucki, William J.; et al. (2011). "Characteristics of Planetary Candidates Observed by Kepler. II. Analysis of the First Four Months of Data". The Astrophysical Journal. 736 (1): 19. arXiv:1102.0541. Bibcode:2011ApJ...736...19B. doi:10.1088/0004-637X/736/1/19.
- ↑ "TEPCat: Kepler-15". Astro.keele.ac.uk. 2013-02-21. Retrieved 2013-02-28.
- ↑ Planet Kepler-15 b on explanet.eu
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