Gliese 588

Gliese 588 is a nearby red dwarf star of spectral type M2.5, located in the constellation Lupus at 19.34 light-years from Earth.[1] It emits a very stable light flux, with no detectable pulsations.[6]

Gliese 588
Observation data
Epoch J2000      Equinox J2000
Constellation Lupus
Right ascension 15h 32m 12.93186s[1]
Declination −41° 16′ 32.1081″[1]
Apparent magnitude (V) 9.311
Characteristics
Spectral type M2.5V[2]
U−B color index +1.14[3]
B−V color index +1.51[3]
Astrometry
Radial velocity (Rv)15.50 km/s
Proper motion (μ) RA: -1176.447[4] mas/yr
Dec.: -1030.9703[4] mas/yr
Parallax (π)168.9965 ± 0.0270 mas[4]
Distance19.300 ± 0.003 ly
(5.9173 ± 0.0009 pc)
Absolute magnitude (MV)10.44[5]
Details[6]
Mass0.43±0.05 M☉
Radius0.42±0.03 R☉
Surface gravity (log g)4.82±0.08 cgs
Temperature3555±41 K
Metallicity [Fe/H]0.06±0.08 dex
Rotation61.3±6.5 d[7]
Other designations
CD-40° 9712, GJ 588, HIP 76074, LHS 397, LTT 6210, TYC 7844-1976-1, 2MASS J15321302-4116314[2]
Database references
SIMBADdata
Gliese 588 is located in the constellation Lupus
Gliese 588 is located in the constellation Lupus
Gliese 588     
Location of Gliese 588 in the constellation Lupus

History of observations

According to Luyten's (1979) (catalogue LHS, as well as NLTT), this object was discovered by Innes.[8][9] In 1903–1927 Innes was the director of the Union Observatory (UO), South Africa.

However, in the Ci 20 catalogue (see number 934) this star was designated as "CD -40 7021", not "UO".[10] This may indicate that GJ 588 was first catalogued earlier, in the Cordoba Durchmusterung by John M. Thome in 1894.[11][12] Note: the real CD designation of Gliese 588 is "CD-40 9712",[13] not "CD -40 7021":[10] GJ 588 has a RA of 15 hours, but the real CD -40 7021 has a RA of 11 hours.[14][11]

Planetary system

On 11 June 2019, two planets were detected by radial velocity around Gliese 588 among other 118 planets around M dwarf stars.[15]

The Gliese 588 planetary system
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b (unconfirmed) 2.4+1.0
−0.9 M🜨		 0.049±0.005 5.8084+0.0016
−0.0018		 0.04+0.25
−0.04		 — —
c (unconfirmed) 10.3+6.9
−4.9 M🜨		 0.530+0.048
−0.054		 206.0+2.0
−3.3		 0.06+0.02
−0.06		 — —

References
  1. van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600. Vizier catalog entry
  2. "GJ 588". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 25 December 2016.
  3. Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode:1986EgUBV........0M.
  4. 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.
  5. "The One Hundred Nearest Star Systems". 2012. Retrieved 25 December 2016.
  6. Berdiñas, Z. M.; Rodríguez-López, C.; Amado, P. J.; Anglada-Escudé, G.; Barnes, J. R.; MacDonald, J.; Zechmeister, M.; Sarmiento, L. F. (2017), "High-cadence spectroscopy of M-dwarfs – II. Searching for stellar pulsations with HARPS", Monthly Notices of the Royal Astronomical Society, 469 (4): 4268–4282, arXiv:1705.04690, doi:10.1093/mnras/stx1140
  7. Suárez Mascareño, A.; Rebolo, R.; González Hernández, J. I.; Esposito, M. (2015), "Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators", Monthly Notices of the Royal Astronomical Society, 452 (3): 2745–2756, arXiv:1506.08039, Bibcode:2015MNRAS.452.2745S, doi:10.1093/mnras/stv1441
  8. Luyten, Willem Jacob (1979). "LHS 397". LHS Catalogue, 2nd Edition.
  9. Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Mace, Gregory N.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Eisenhardt, Peter R.; McLean, Ian S.; Mainzer, Amy K.; Burgasser, Adam J.; Tinney, Chris G.; Parker, Stephen; Salter, Graeme (2012). "Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function". The Astrophysical Journal. 753 (2): 156. arXiv:1205.2122. Bibcode:2012ApJ...753..156K. doi:10.1088/0004-637X/753/2/156. S2CID 119279752.
  10. Porter, J. G.; Yowell, E. J.; Smith, E. S. (1930). "A catalogue of 1474 stars with proper motion exceeding four-tenths year". Publications of the Cincinnati Observatory. 20: 1–32. Bibcode:1930PCinO..20....1P. Page 21 (Ci 20 934).
  11. Thome, J. M. (1894). "Cordoba Durchmusterung declination -32 to -42". Resultados del Observatorio Nacional Argentino. 17: 1–538. Bibcode:1894RNAO...17....1T. Page 468 (CD -40 9712); page 459 (CD -40 7021)
  12. Dictionary of Nomenclature of Celestial Objects. CD entry. SIMBAD. Centre de Données astronomiques de Strasbourg.
  13. Luyten, Willem Jacob (1979). "NLTT 40449". NLTT Catalogue.
  14. Thome, John Macon (1892–1932). "CD -40 7021". Cordoba Durchmusterung.
  15. Barnes, J. R.; Kiraga, M.; Diaz, M.; Berdiñas, Z.; Jenkins, J. S.; Keiser, S.; Thompson, I.; Crane, J. D.; Shectman, S. A. (11 June 2019). "Frequency of planets orbiting M dwarfs in the Solar neighbourhood". arXiv:1906.04644v1 [astro-ph.EP].
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