Gliese 710

For the song, see Gliese 710 (song).
Gliese 710
Observation data
Epoch J2000      Equinox J2000
Constellation Serpens
Right ascension 18h 19m 50.8412s[1]
Declination −01° 56′ 19.005″[1]
Apparent magnitude (V) 9.66[2] (9.65–9.69)[3]
Characteristics
Spectral type K7 Vk[4]
U−B color index +1.26[2]
B−V color index +1.37[2]
Variable type Suspected[3]
Astrometry
Radial velocity (Rv)−14.53±0.44[5] km/s
Proper motion (μ) RA: −0.414±0.019[5] mas/yr
Dec.: −0.108±0.017[5] mas/yr
Parallax (π)52.3963 ± 0.0171 mas[5]
Distance62.25 ± 0.02 ly
(19.085 ± 0.006 pc)
Absolute magnitude (MV)8.20[6] (8.19–8.23)[note 1]
Details
Mass0.57[7] M☉
Radius0.58[7] R☉
Luminosity (bolometric)0.091[7] L☉
Luminosity (visual, LV)0.045[note 2] L☉
Surface gravity (log g)4.66[7] cgs
Temperature4,143[7] K
Metallicity [Fe/H]−0.11[7] dex
Rotational velocity (v sin i)6.42±0.78[8] km/s
Age300[9] Myr
Other designations
Gliese 710, BD–01°3474, HIP 89825, HD 168442, NSV 10635[2]
Database references
SIMBADdata
ARICNSdata

Gliese 710, or HIP 89825, is an orange 0.6 M☉ star in the constellation Serpens Cauda. It is projected to pass near the Sun in about 1.29 million years at a predicted minimum distance of 0.051 parsecs—0.1663 light-years (10,520 astronomical units)[5] (about 1.6 trillion km)—about 1/25th of the current distance to Proxima Centauri.[10] Such a distance would make for a similar brightness to the brightest planets, optimally reaching an apparent visual magnitude of about −2.7. The star's proper motion will peak around one arcminute per year,[11][12] a rate of apparent motion that would be noticeable over a human lifespan. This is a timeframe, based on data from Gaia DR3, well within the parameters of current models which cover the next 15 million years.

  1. ^ a b Cite error: The named reference Gaia DR2 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference SIMBAD-Gliese710 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference gcvs71 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference aj132_1_161 was invoked but never defined (see the help page).
  5. ^ a b c d e Cite error: The named reference GaiaEDR3 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference koen was invoked but never defined (see the help page).
  7. ^ a b c d e f Cite error: The named reference schweitzer2019 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference aaa514_A97 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference passegger2019 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Berski2016 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Forbes2016 was invoked but never defined (see the help page).


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