K2-58
K2-58 (also designated as EPIC 206026904) is a G-type main-sequence star in the constellation of Aquarius, approximately 596 light-years from the Solar System. The star is metal-rich, having 155% of the Solar abundance of elements heavier than helium. The star is located in a region where a hypothetical observer in the K2-58 system can see Venus transiting the sun.
Planetary system
The planetary system has three confirmed exoplanets, named K2-58 b, K2-58 c, and K2-58 d, discovered in 2016.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| K2-58c | — | 0.0350 | 2.53726 | — | 86.1 −7.3° |
1.62 R🜨 |
| K2-58b | — | 0.0692 | 7.05254 | — | 88.9 −1.6° |
2.68 R🜨 |
| K2-58d | — | 0.1517 | 22.8827 | — | 89.43 −0.81° |
1.71 R🜨 |
References
- ^ "K2-58". SIMBAD. Centre de données astronomiques de Strasbourg.
- ^ Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
- ^ Brewer, John M.; Fischer, Debra A. (2018), "Spectral Properties of Cool Stars: Extended Abundance Analysis of Kepler Objects of Interest", The Astrophysical Journal Supplement Series, 237 (2): 38, arXiv:1804.00673, Bibcode:2018ApJS..237...38B, doi:10.3847/1538-4365/aad501, S2CID 119431797
- ^ Mayo, Andrew W.; Vanderburg, Andrew; Latham, David W.; Bieryla, Allyson; Morton, Timothy D.; Buchhave, Lars A.; Dressing, Courtney D.; Beichman, Charles; Berlind, Perry; Calkins, Michael L.; Ciardi, David R.; Crossfield, Ian J. M.; Esquerdo, Gilbert A.; Everett, Mark E.; Gonzales, Erica J.; Hirsch, Lea A.; Horch, Elliott P.; Howard, Andrew W.; Howell, Steve B.; Livingston, John; Patel, Rahul; Petigura, Erik A.; Schlieder, Joshua E.; Scott, Nicholas J.; Schumer, Clea F.; Sinukoff, Evan; Teske, Johanna; Winters, Jennifer G. (2018), "275 Candidates and 149 Validated Planets Orbiting Bright Stars inK2 Campaigns 0–10", The Astronomical Journal, 155 (3): 136, arXiv:1802.05277, Bibcode:2018AJ....155..136M, doi:10.3847/1538-3881/aaadff, S2CID 85524387
- ^ Kruse, Ethan; Agol, Eric; Luger, Rodrigo; Foreman-Mackey, Daniel (2019), "Detection of Hundreds of New Planet Candidates and Eclipsing Binaries in K2 Campaigns 0–8", The Astrophysical Journal Supplement Series, 244 (1): 11, arXiv:1907.10806, Bibcode:2019ApJS..244...11K, doi:10.3847/1538-4365/ab346b, S2CID 198901606
- ^ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2019-07-16.
- ^ "EPIC 206026904". www.cfa.harvard.edu. Retrieved 2019-07-16.
- ^ "Open Exoplanet Catalogue - K2-58 b". www.openexoplanetcatalogue.com. Retrieved 2019-07-16.
- ^ Crossfield, Ian J. M.; et al. (2021), "197 CANDIDATES AND 104 VALIDATED PLANETS IN K2 's FIRST FIVE FIELDS", The Astrophysical Journal Supplement Series, 226: 7, arXiv:1607.05263, doi:10.3847/0067-0049/226/1/7, S2CID 56125109
