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Luyten's Star

Luyten's Star
Luyten's Star is located in the constellation Canis Minor.
Luyten's Star is located in the constellation Canis Minor.
Luyten's Star
Location of Luyten's Star in the constellation Canis Minor

Observation data
Epoch J2000      Equinox J2000
Constellation Canis Minor
Right ascension 07h 27m 24.49897s[1]
Declination +05° 13′ 32.8415″[1]
Apparent magnitude (V) 9.872[2]
Characteristics
Spectral type M3.5V[3]
U−B color index 1.115[2]
B−V color index 1.571[2]
Variable type None
Astrometry
Radial velocity (Rv)17.35±0.19[1] km/s
Proper motion (μ) RA: 571.232 mas/yr[1]
Dec.: −3,691.487 mas/yr[1]
Parallax (π)264.1269 ± 0.0413 mas[1]
Distance12.348 ± 0.002 ly
(3.7861 ± 0.0006 pc)
Absolute magnitude (MV)11.94[2]
Details[4]
Mass0.29 M☉
Radius0.293±0.027 R☉
Luminosity0.0088 L☉
Surface gravity (log g)5[5] cgs
Temperature3,382±49 K
Metallicity [Fe/H]0.09±0.17 dex
Rotation115.6±19.4 d,[6] ~99 d[4]
Age≳8 Gyr
Other designations
Luyten's Star, BD+05 1668, GJ 273, HIP 36208, G 112-17, G 89-19, LFT 527, LHS 33, LTT 12021, NLTT 17881, PLX 1755, TYC 173-3208-1, GCRV 4954, MCC 17[7]
Database references
SIMBADdata

Luyten's Star /ˈlaɪtənz/ (GJ 273) is a red dwarf in the constellation Canis Minor located at a distance of 12.35 light-years (3.79 parsecs) from the Sun. It has a visual magnitude of 9.9, making it too faint to be viewed with the unaided eye. It is named after Willem Jacob Luyten, who, in collaboration with Edwin G. Ebbighausen, first determined its high proper motion in 1935.[8] The star has two confirmed planets and two candidate planets,[4] of which Luyten b is in the circumstellar habitable zone.[9]

  1. ^ a b c d e Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference mnras334 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference RECONS was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference PozuelosSuárez2020 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference mnras388 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference mnras452_3_2745 was invoked but never defined (see the help page).
  7. ^ "BD+05 1668". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 29 October 2023.
  8. ^ Cite error: The named reference hcob900_1 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Astudillo-Defru2017 was invoked but never defined (see the help page).

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