GJ 3323

GJ 3323
GJ 3323 is located in the constellation Eridanus
GJ 3323 is located in the constellation Eridanus

GJ 3323
Location of GJ 3323 in the constellation Eridanus

Observation data
Epoch J2000      Equinox J2000
Constellation Eridanus
Right ascension 05h 01m 57.42613s[1]
Declination −06° 56′ 46.3763″[1]
Apparent magnitude (V) 12.20[2]
Characteristics
Spectral type M4.0Ve[3]
B−V color index +1.72[2]
Astrometry
Radial velocity (Rv)42.309±0.0809[2] km/s
Proper motion (μ) RA: −551.746 mas/yr[1]
Dec.: −533.648 mas/yr[1]
Parallax (π)186.0466 ± 0.0277 mas[1]
Distance17.531 ± 0.003 ly
(5.3750 ± 0.0008 pc)
Absolute magnitude (MV)13.57[3]
Details[4]
Mass0.1705±0.0044 M☉
Radius0.1862±0.0059 R☉
Luminosity0.003654±0.000052 L☉
Surface gravity (log g)5.07±0.07 cgs
Temperature3,288±51 K
Metallicity [Fe/H]+0.01±0.16 dex
Rotation88.50 d[5]
Rotational velocity (v sin i)1.0±0.8[3] km/s
Other designations
GJ 3323, LHS 1723, NLTT 14393, 2MASS J05015746-0656459[6]
Database references
SIMBADdata

GJ 3323 (also known as LHS 1723) is a nearby single[7] star located in the equatorial constellation Eridanus, about 0.4° to the northwest of the naked eye star Psi Eridani.[8] It is invisible to the naked eye with an apparent visual magnitude 12.20.[2] Parallax measurements give a distance estimate of 17.5 light-years (5.4 parsecs) from the Sun.[1] It is drifting further away with a radial velocity of +42.3 km/s.[2] Roughly 104,000 years ago, the star is believed to have come to within 7.34 ± 0.16 light-years of the Solar System.[9]

The stellar classification of GJ 3323 is M4.0Ve,[3] indicating that it is a red dwarf, with emission lines appearing in its spectrum.[2] It is fully convective and a source of X-ray emission.[5] The star has 17% of the Sun's mass, 19% of the radius of the Sun, and just 0.4% of the Sun's luminosity.[4]

  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 e f Cite error: The named reference Soubiran2018 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference Davison_et_al_2015 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Schweitzer_et_al_2019 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Wright_et_al_2018 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Astudillo-Defru2017 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Sinnott1997 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Bobylev2010 was invoked but never defined (see the help page).