Upsilon Aurigae

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υ Aurigae
Location of υ Aurigae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 05h 51m 02.43804s[1]
Declination +37° 18′ 20.0581″[1]
Apparent magnitude (V) 4.74[2]
Characteristics
Evolutionary stage Asymptotic giant branch[3]
Spectral type M0 III[4]
U−B color index +1.93[2]
B−V color index +1.62[2]
R−I color index 1.07
Variable type Suspected[5]
Distance
500 ± 30 ly
(154 ± 8 pc)
Absolute magnitude (MV)−1.28[7]
Details
Gyr
HR 2011, SAO 58496[10]
Database references
SIMBADdata

Upsilon Aurigae,

apparent visual magnitude of 4.74,[2] which means it is bright enough to be seen with the naked eye. Based upon parallax measurements, this star is approximately 500 light-years (150 parsecs) distant from the Earth. It is drifting further away with a radial velocity of +38 km/s.[6]

This is an

Sun's luminosity from its photosphere at an effective temperature of 3,912 K.[8]

References

  1. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  2. ^
    Bibcode:1966CoLPL...4...99J
  3. ^
    doi:10.1086/116239
    .
  4. ^
    S2CID 121902473
    .
  5. ^
    Bibcode:1979IBVS.1531....1H
    .
  6. ^
    S2CID 17804304
    .
  7. S2CID 119257644
    .
  8. ^
    S2CID 119427037
    .
  9. doi:10.1093/pasj/63.3.677
    .
  10. ^ "* ups Aur". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2012-08-23.
  11. S2CID 14878976
    .

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=Upsilon_Aurigae&oldid=1186944222"