HD 56618

Source: Wikipedia, the free encyclopedia.
HD 56618
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Canis Major
Right ascension 07h 16m 34.99315s[1]
Declination −27° 52′ 52.2453″[1]
Apparent magnitude (V) 4.66[2]
Characteristics
Evolutionary stage AGB[3]
Spectral type M2III[4]
B−V color index 1.589±0.028[2]
Distance
390 ± 10 ly
(120 ± 4 pc)
Absolute magnitude (MV)−0.80[2]
Details
Radius61.1+7.3
−6.9[1] R☉
Luminosity699.7±27.3[1] L☉
Temperature3,797+233
−209[1] K
HR 2766, SAO 173360[5]
Database references
SIMBADdata

HD 56618 is a single

light years from the Sun based on parallax measurements. It is drifting further away with a radial velocity of +41.5 km/s,[2] having come to within 203 light-years some 2.2 million years ago.[2] Olin J. Eggen listed it as a probable member of the Hyades supercluster.[7]

This is an aging

luminosity of the Sun from its enlarged photosphere at an effective temperature of 3,797 K.[1]

References

  1. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  2. ^
    S2CID 119257644
    .
  3. ^
    doi:10.1086/116239
    .
  4. ^
    Bibcode:1982mcts.book.....H
    .
  5. ^ "HD 56618". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-01-17.
  6. S2CID 14878976
    .
  7. doi:10.1086/113736
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