Ross 508

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Ross 508
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 [4]
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)
Absolute magnitude  (MV)13.5 [5]
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
GJ 585, Ci 20 930, G 137-2, G 136-103, LFT 1203, LHS 396, LSPM J1523+1727, LTT 14584, NLTT 40124, PLX 3481, PM 15216+1739, PM J15238+1727, Ross 508, TIC 400019820, 2MASS J15235112+1727569 [6]
Database references
SIMBAD data

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. [7] In 2022 it was discovered to have a super-Earth, Ross 508 b, orbiting every 10.77 days, detected by doppler spectroscopy. [4]

The Ross 508 planetary system [4]
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±0.010.33+0.13
−0.15		——

References

  1. ↑ "Finding the constellation which contains given sky coordinates". djm.cc. 2 August 2008.
  2. 1 2 3 4 5 6 7 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.
  3. 1 2 3 "Ross 508". NASA Exoplanet Archive .
  4. 1 2 3 4 5 6 7 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.
  5. ↑ Houdebine, Éric R.; Mullan, D. J.; Doyle, J. G.; de la Vieuville, Geoffroy; Butler, C. J.; Paletou, F. (2019). "The Mass-Activity Relationships in M and K Dwarfs. I. Stellar Parameters of Our Sample of M and K Dwarfs". The Astronomical Journal. 158 (2): 56. arXiv: 1905.07921 . Bibcode:2019AJ....158...56H. doi: 10.3847/1538-3881/ab23fe .
  6. ↑ "Ross 508". SIMBAD . Centre de données astronomiques de Strasbourg.
  7. ↑ 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 .
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