Peter 393

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Star
gliese 393
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation sextant
Right ascension 10 h 28 m 55.55 s
declination + 00 ° 50 ′ 27.6 ″
Apparent brightness 9.65 likes
Typing
Spectral class M2.0 Ve
Astrometry
parallax (142.19 ± 0.05)  mas
distance 23.0 ± 0.4  ly
7.1 ± 0.1  pc
Physical Properties
Dimensions 0.41  M ☉
radius 0.41  R ☉
Luminosity

0.0235  L ☉

Metallicity [Fe / H] −0.11 ± 0.04
Other names
and catalog entries
Bonn survey BD + 01 ° 2447
Gliese catalog FY 393 [1]
Hipparcos catalog HIP 51317 [2]
Tycho catalog TYC 246-1068-1 [3]
Other names Ross 446

Gliese 393 is a red dwarf star in the constellation Sextant . With an apparent magnitude of 9.65 mag, the star shines far too weakly to be seen with the naked eye. As a small star, it has about 41% the mass and radius of the Sun, but only 2.35% of its luminosity .

Individual evidence

  1. ↑ a b c d BD +01 2447. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed August 26, 2018 .
  2. ↑ a b c d Maldonado, J. et al .: Stellar parameters of early-M dwarfs from ratios of spectral features at optical wavelengths . In: Astronomy & Astrophysics . 577, 2015, p. 13. arxiv : 1503.03010 . A132. bibcode : 2015A & A ... 577A.132M . doi : 10.1051 / 0004-6361 / 201525797 .