User:Mike s/draft2
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Leo[1] |
| Right ascension | 11h 17m 47.7836s[2] |
| Declination | 03° 51′ 59.006″[2] |
| Apparent magnitude (V) | 10.165(46)< |
| Characteristics | |
| Apparent magnitude (J) | 10.034(22)[3] |
| Apparent magnitude (H) | 9.549(22)[3] |
| Apparent magnitude (K) | 9.454(25)[3] |
| Variable type | Planetary transit[4] |
| Astrometry | |
| Radial velocity (Rv) | −8.92(6) km/s |
| Proper motion (μ) | RA: −20.400(17) mas/yr[2] Dec.: 26.329(17) mas/yr[2] |
| Parallax (π) | 9.16531±0.0172 mas[2] |
| Distance | 355.9 ± 0.7 ly (109.1 ± 0.2 pc) |
| Details | |
| Mass | 0.949+0.022 −0.019 M☉ |
| Radius | 1.335+0.025 −0.029 R☉ |
| Surface gravity (log g) | 4.23(2) cgs |
| Temperature | 5842(14) K |
| Metallicity [Fe/H] | −0.19(1) dex |
| Rotational velocity (v sin i) | 2.31(53)[5] km/s |
| Age | 9.656(1.002) Gyr |
| Other designations | |
| Gaia DR3 3811989156889528320, TYC 266-622-1, 2MASS J11174778+0351590[6] | |
K2-36
Stellar system
[edit]Planetary system
[edit]K2-36b
[edit]Discovery
[edit]Orbit
[edit]Atmosphere
[edit]| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 3.9(1.1)[8] M🜨 | 0.02288(10) | 1.422614(38) | <0.093 | 84.45+0.78 −0.48° |
1.43(8)[8] R🜨 |
| c | 7.9(2.8) M🜨 | 0.05528(23) | 5.340888(86) | <0.089 | 86.917+0.066 −0.056° |
3.20(30) R🜨 |
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 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.
- ^ a b c Skrutskie, M. F.; et al. (2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. Vizier catalog entry
- ^ a b Damasso, M.; et al. (2019). "So close, so different: characterization of the K2-36 planetary system with HARPS-N". Astronomy & Astrophysics. 624 A38. arXiv:1902.01881. Bibcode:2019A&A...624A..38D. doi:10.1051/0004-6361/201834671.
- ^ Rainer, M.; et al. (2023). "The GAPS programme at TNG: XLIV. Projected rotational velocities of 273 exoplanet-host stars observed with HARPS-N". Astronomy & Astrophysics. 676 A90. arXiv:2306.13468. Bibcode:2023A&A...676A..90R. doi:10.1051/0004-6361/202245564. Vizier catalog entry
- ^ "K2-36". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2025-06-04.
- ^ Bonomo, A. S.; et al. (2023). "Cold Jupiters and improved masses in 38 Kepler and K2 small planet systems from 3661 HARPS-N radial velocities: No excess of cold Jupiters in small planet systems". Astronomy & Astrophysics. 677 A33. arXiv:2304.05773. Bibcode:2023A&A...677A..33B. doi:10.1051/0004-6361/202346211.
- ^ a b Brinkman, Casey L.; et al. (2024-12-01). "Revisiting the Relationship Between Rocky Exoplanet and Stellar Compositions: Reduced Evidence for a Super-Mercury Population". The Astronomical Journal. 168 (6) 281. arXiv:2409.08361. Bibcode:2024AJ....168..281B. doi:10.3847/1538-3881/ad82eb.
External links
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