Astronomy:Ross 508

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Short description: Red dwarf star
Ross 508
Observation data
Equinox J2000.0]] (ICRS)
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[2] mas/yr
Dec.: −1259.296±0.034[2] mas/yr
Parallax (π)89.1284 ± 0.0331[2] mas
Distance36.59 ± 0.01 ly
(11.220 ± 0.004 pc)
Details[4]
Mass0.1774±0.0045 M
Radius0.2113±0.0063 R
Luminosity (bolometric)0.003589+0.000067
−0.000071
 L
Surface gravity (log g)5.039±0.027 cgs
Temperature3071+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, 2MASS J15235112+1727569[5]
Database references
SIMBADdata

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]

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±0.01 0.33+0.13
−0.15

References

  1. "Finding the constellation which contains given sky coordinates". 2 August 2008. http://djm.cc/constellation.html. 
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  3. 3.0 3.1 3.2 "Ross 508". https://exoplanetarchive.ipac.caltech.edu/overview/Ross%20508. 
  4. 4.0 4.1 4.2 4.3 4.4 4.5 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. doi:10.1093/pasj/psac044. Bibcode2022PASJ...74..904H. 
  5. "Ross 508". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Ross+508. 
  6. Ross, Frank E. (November 1, 1925). "New proper-motion stars, (first list)". The Astronomical Journal 36: 96–99. doi:10.1086/104687. Bibcode1925AJ.....36...96R. 

External links