Ross 508 is a 13th magnitude red dwarf star, 11.2183 parsecs away. The Ross catalog is named after Frank Elmore Ross who published a first list of 86 high proper motion stars in 1925.[6] In 2022 it was discovered to have a super-Earth, Ross 508 b, orbiting every 10.77 days, detected by doppler spectroscopy.[4]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Serpens[1] |
| Right ascension | 15h 23m 51.13709s[2] |
| Declination | +17° 27′ 57.4439″[2] |
| Apparent magnitude (V) | 14.18±0.20[3] |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | M4.5[4] |
| Apparent magnitude (V) | 14.18±0.20[3] |
| Apparent magnitude (G) | 12.195±0.003[2] |
| Apparent magnitude (J) | 9.105±0.024[4] |
| Apparent magnitude (H) | 8.620±0.032[3] |
| Apparent magnitude (K) | 8.279±0.023[4] |
| Astrometry | |
| Radial velocity (Rv) | 42.14±0.39[2] km/s |
| Proper motion (μ) | RA: −391.919±0.034 mas/yr[2] Dec.: −1259.296±0.034 mas/yr[2] |
| Parallax (π) | 89.1284 ± 0.0331 mas[2] |
| Distance | 36.59 ± 0.01 ly (11.220 ± 0.004 pc) |
| Details[4] | |
| Mass | 0.1774±0.0045 M☉ |
| Radius | 0.2113±0.0063 R☉ |
| Luminosity (bolometric) | 0.003589+0.000067 −0.000071 L☉ |
| Surface gravity (log g) | 5.039±0.027 cgs |
| Temperature | 3071+34 −22 K |
| Metallicity [Fe/H] | −0.20±0.20 dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥4.00+0.53 −0.55 M🜨 |
0.05366+0.00056 −0.00049 |
10.77±0.01 | 0.33+0.13 −0.15 |
— | — |
References
edit- ^ "Finding the constellation which contains given sky coordinates". djm.cc. 2 August 2008.
- ^ 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.
- ^ a b c "Ross 508". NASA Exoplanet Archive.
- ^ a b c d e f Harakawa, Hiroki; et al. (2022). "A super-Earth orbiting near the inner edge of the habitable zone around the M4.5 dwarf Ross 508". Publications of the Astronomical Society of Japan. 74 (4): 904–922. arXiv:2205.11986. Bibcode:2022PASJ...74..904H. doi:10.1093/pasj/psac044.
- ^ "Ross 508". SIMBAD. Centre de données astronomiques de Strasbourg.
- ^ Ross, Frank E. (November 1, 1925). "New proper-motion stars, (first list)". The Astronomical Journal. 36: 96–99. Bibcode:1925AJ.....36...96R. doi:10.1086/104687.
External links
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