20 Monocerotis

Source: Wikipedia, the free encyclopedia.
20 Monocerotis
Location of 20 Monocerotis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation
Monoceros
Right ascension 07h 10m 13.68177s[1]
Declination −04° 14′ 13.5829″[1]
Apparent magnitude (V) 4.92[2]
Characteristics
Evolutionary stage horizontal branch[3]
Spectral type K0III[4]
U−B color index +0.78[2]
B−V color index +1.03[2]
Distance
194 ± 2 ly
(59.4 ± 0.6 pc)
Absolute magnitude (MV)0.94[6]
Details
Gyr
HR 2701, SAO 134282, CCDM J07102-0414A, WDS J07102-0414A[8]
Database references
SIMBADdata

20 Monocerotis is a single

apparent visual magnitude of 4.92.[2] The star is receding from the Earth with a heliocentric radial velocity of +78 km/s.[5]

This object is an aging

luminosity of the Sun from its swollen photosphere at an effective temperature of 4,714 K.[7]

In addition to the primary, three

visual companions have been reported: component B, with magnitude 12.93 and separation 67.8", C, with magnitude 10.16 and separation 167.9", and D, with magnitude 12.46 and separation 102.3".[10]

References

  1. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  2. ^
    Bibcode:2002yCat.2237....0D
    .
  3. ^
    S2CID 44228180
  4. ^
    Bibcode:1995yCat.5050....0H
    .
  5. ^
    S2CID 53666931. Vizier catalog entry
  6. S2CID 119257644. Vizier catalog entry
  7. ^
    S2CID 53666931
    .
  8. ^ "20 Mon". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-31.
  9. S2CID 14878976
    .
  10. doi:10.1086/323920. Vizier catalog entry
Retrieved from "https://en.wikipedia.org/w/index.php?title=20_Monocerotis&oldid=1154749211"