20 Boötis

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20 Boötis
Observation data
Epoch J2000      Equinox J2000
Constellation
Boötes
Right ascension 14h 19m 45.23505s[1]
Declination +16° 18′ 24.9955″[1]
Apparent magnitude (V) 4.84[2]
Characteristics
Spectral type K3 III[3]
B−V color index 1.228±0.001[2]
Distance
183 ± 2 ly
(56.1 ± 0.6 pc)
Absolute magnitude (MV)1.01±0.09[4]
Details
Gyr
HR 5370, SAO 100980[6]
Database references
SIMBADdata

20 Boötis is a single

arc seconds per annum.[8] It is moving closer to the Earth with a heliocentric radial velocity of −8 km/s.[2]

This is an aging

luminosity of the Sun from its swollen photosphere at an effective temperature of 4,472 K.[4]

References

  1. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  2. ^
    S2CID 119257644
    .
  3. ^
    doi:10.1086/145598
    .
  4. ^
    S2CID 9341088
    .
  5. ^
    doi:10.1051/0004-6361:20041042-1
    .
  6. ^ "20 Boo". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved May 8, 2019.
  7. S2CID 14878976
    .
  8. S2CID 2603568
    .
  9. S2CID 16673121

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=20_Boötis&oldid=1170043667"