Psi Pegasi

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Psi Pegasi
Location of ψ Pegasi (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Pegasus
Right ascension 23h 57m 45.52681s[1]
Declination 25° 08′ 29.0480″[1]
Apparent magnitude (V) 4.66[2]
Characteristics
Spectral type M3III[3]
U−B color index +1.66[2]
B−V color index +1.59[2]
Variable type suspected[4]
Distance
480 ± 20 ly
(146 ± 5 pc)
Absolute magnitude (MV)–1.19[6]
Argument of periastron
(ω)
(secondary)		159.7±11.9°
Details
Radius98±6[8] R☉
Luminosity960[6] L☉
Temperature3,882[9] K
HR 9064, SAO 91611, WDS J23578+2508AB[10]
Database references
SIMBADdata

Psi Pegasi, which is

apparent visual magnitude of 4.66.[2] This object is located at a distance of approximately 476 light-years away from the Sun based on parallax,[1] but is drifting closer with a radial velocity of −6.6 km/s.[5]

A visual band light curve for Psi Pegasi, plotted from data published by Tabur et al. (2009)[12]

The

luminosity of the Sun from its bloated photosphere at an effective temperature of 3,882 K.[9]

References

  1. ^
    S2CID 18759600. Vizier catalog entry
  2. ^
    Bibcode:2002yCat.2237....0D
    .
  3. ^
    S2CID 123149047
    .
  4. ^
    Bibcode:2009yCat....102025S
    .
  5. ^
    S2CID 17804304
    .
  6. ^
    S2CID 119257644. Vizier catalog entry
  7. ^
    doi:10.2298/SAJ0468025O
    .
  8. ^
    S2CID 16778588
    , A88.
  9. ^
    S2CID 59268230. Vizier catalog entry
  10. ^ "psi Peg". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-10-26.
  11. ISBN 9781139493680
    .
  12. ^
    S2CID 15358380
    .
  13. doi:10.1051/0004-6361/201219774. Vizier catalog entry
  14. doi:10.1086/323920. Vizier catalog entry
  15. doi:10.1086/116239
    .
  16. Bibcode:2006SASS...25...47W
    .
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