Kepler-48
(Redirected from Kepler-48c)
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus[1] |
| Right ascension | 19h 56m 33.416s[2] |
| Declination | +40° 56′ 56.50″[2] |
| Apparent magnitude (V) | 13.174±0.103[3] |
| Characteristics | |
| Evolutionary stage | subgiant[2][4] |
| Spectral type | K0V[5] |
| Astrometry | |
| Radial velocity (Rv) | −13.34±2.12[2] km/s |
| Proper motion (μ) | RA: 13.215(12) mas/yr[2] Dec.: −20.410(15) mas/yr[2] |
| Parallax (π) | 3.2283±0.0116 mas[2] |
| Distance | 1,010 ± 4 ly (310 ± 1 pc) |
| Details | |
| Mass | 0.916[6] M☉ |
| Radius | 0.897[7] R☉ |
| Luminosity | 0.5137[8] L☉ |
| Surface gravity (log g) | 4.47363[7] cgs |
| Temperature | 5,160[7] K |
| Metallicity [Fe/H] | 0.2±0.1[8] dex |
| Rotational velocity (v sin i) | 0.5[9] km/s |
| Age | 3.14[9] Gyr |
| Other designations | |
| Kepler-48, KOI-148, KIC 5735762, 2MASS J19563341+4056564[10] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| KIC | data |
Kepler-48, previously designated KOI-148, is a subgiant star in the constellation of Cygnus, about 1,000 light years away.
Planetary System
[edit]Kepler-48 has five confirmed exoplanets.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 6.8±2.9 M🜨 | 0.054 | 4.78 | — | — | 1.85±0.09 R🜨 |
| c | 11.1±3.2 M🜨 | 0.086 | 9.67 | — | — | 2.56±0.07 R🜨 |
| d | 9±6 M🜨 | 0.23 | 42.9 | — | — | 1.98±0.07 R🜨 |
| e | 2.16±0.07 MJ | 1.9 | 1001 | 0.003±0.028 | — | — |
| f | 0.93±0.29 MJ | 5.7 | 5205 | 0.01±0.15 | — | — |
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.
- ^ a b c d e f 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.
- ^ Zacharias, N.; Finch, C. T.; Girard, T. M.; Henden, A.; Bartlett, J. L.; Monet, D. G.; Zacharias, M. I. (2012). "VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)". Vizier Online Data Catalog. Bibcode:2012yCat.1322....0Z.
- ^ Claudi, R.; et al. (2024). "The GAPS Programme at TNG. LI. Investigating the correlations between transiting system parameters and host chromospheric activity". Astronomy and Astrophysics. 682. Bibcode:2024A&A...682A.136C. doi:10.1051/0004-6361/202347079. hdl:10261/359655.
- ^ 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.
- ^ Weiss, Lauren M.; Isaacson, Howard; Howard, Andrew W.; Fulton, Benjamin J.; Petigura, Erik A.; Fabrycky, Daniel; Jontof-Hutter, Daniel; Steffen, Jason H.; Schlichting, Hilke E.; Wright, Jason T.; Beard, Corey; Brinkman, Casey L.; Chontos, Ashley; Giacalone, Steven; Hill, Michelle L.; Kosiarek, Molly R.; MacDougall, Mason G.; Močnik, Teo; Polanski, Alex S.; Turtelboom, Emma V.; Tyler, Dakotah; Van Zandt, Judah (1 January 2024). "The Kepler Giant Planet Search. I. A Decade of Kepler Planet-host Radial Velocities from W. M. Keck Observatory". The Astrophysical Journal Supplement Series. 270 (1): 8. arXiv:2304.00071. Bibcode:2024ApJS..270....8W. doi:10.3847/1538-4365/ad0cab. ISSN 0067-0049.
- ^ a b c Stassun, Keivan G.; Oelkers, Ryan J.; Paegert, Martin; Torres, Guillermo; Pepper, Joshua; Lee, Nathan De; Collins, Kevin; Latham, David W.; Muirhead, Philip S.; Chittidi, Jay; Rojas-Ayala, Bárbara; Fleming, Scott W.; Rose, Mark E.; Tenenbaum, Peter; Ting, Eric B.; Kane, Stephen R.; Barclay, Thomas; Bean, Jacob L.; Brassuer, C. E.; Charbonneau, David; Ge, Jian; Lissauer, Jack J.; Mann, Andrew W.; McLean, Brian; Mullally, Susan; Narita, Norio; Plavchan, Peter; Ricker, George R.; Sasselov, Dimitar; Seager, S.; Sharma, Sanjib; Shiao, Bernie; Sozzetti, Alessandro; Stello, Dennis; Vanderspek, Roland; Wallace, Geoff; Winn, Joshua N. (1 October 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467.
- ^ a b c "Kepler-48 Overview". NASA Exoplanet Archive.
- ^ a b Marcy, Geoffrey W.; et al. (13 January 2014). "Masses, Radii, and Orbits of Small Kepler Planets: The Transition from Gaseous to Rocky Planets". The Astrophysical Journal Supplement Series. 210 (2): 20. arXiv:1401.4195. Bibcode:2014ApJS..210...20M. doi:10.1088/0067-0049/210/2/20.
- ^ "Kepler-48". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 March 2025.
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