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LHS 288

LHS 288
Observation data
Epoch J2000      Equinox J2000
Constellation Carina
Right ascension 10h 44m 21.320s[1]
Declination −61° 12′ 35.44″[1]
Apparent magnitude (V) 13.92[2]
Characteristics
Spectral type M5V[3] (M4[1])
B−V color index 1.82[2]
V−R color index 1.59[1]
R−I color index 2.02[1]
J−H color index 0.442[1]
J−K color index 0.764[1]
Astrometry
Proper motion (μ) RA: −334[1] mas/yr
Dec.: 1626[1] mas/yr
Parallax (π)206.9698 ± 0.0448 mas[4]
Distance15.759 ± 0.003 ly
(4.832 ± 0.001 pc)
Absolute magnitude (MV)15.52α
Other designations
L 143-23, RHG95 1673, GJ 3618, LFT 734 LTT 3946, PLX 2511.01, Gaia DR2 5254061535097566848
Database references
SIMBADdata
LHS 288 is located in the constellation Carina.
LHS 288 is located in the constellation Carina.
LHS 288
Location of LHS 288 in the constellation Carina

LHS 288 (Luyten 143-23) is a red dwarf around 15.8 light years from the Sun, the closest in the constellation Carina (near Eta Carinae). It is far too faint to be seen with the unaided eye, with an apparent magnitude of 13.92.

Recent studies suggest it may harbour a planet with a mass as small as 2.4 MJ, but the possibility that it passed over an undetected faint star could not be eliminated.[5]

See also

References

  1. ^ a b c d e f g h i "GJ 3618". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 3 Jun 2017.
  2. ^ a b "Nearby Stars, Preliminary 3rd Version (Gliese+ 1991)".
  3. ^ Henry, T. J.; Jao, Wei-Chun; Subasavage, John P.; Beaulieu, Thomas D.; Ianna, Philip A.; Costa, Edgardo; Méndez, René A. (2006). "The Solar Neighborhood. XVII. Parallax Results from the CTIOPI 0.9 m Program: 20 New Members of the RECONS 10 Parsec Sample" (PDF). The Astronomical Journal. 132 (6): 2360–2371. arXiv:astro-ph/0608230. Bibcode:2006AJ....132.2360H. doi:10.1086/508233. S2CID 15002841.
  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. ^ Bartlett, Jennifer L.; Ianna, P. A.; Begam, M. C. (2007). "Possible Astrometric Perturbation of LHS 288". American Astronomical Society Meeting Abstracts #209. 209: 254.16. Bibcode:2007AAS...20925416B.
^α calculated using this formula
Quelle: https://en.wikipedia.org/wiki/LHS_288