Chi Pegasi

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χ Pegasi
Pegasus constellation map.svg
Red circle.svg
Location of χ Pegasi (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Pegasus
Right ascension  00h 14m 36.16451s[1]
Declination 20° 12′ 24.1205″[1]
Apparent magnitude (V) 4.80[2]
Evolutionary stage asymptotic giant branch[3]
Spectral type M2+III[4]
U−B color index +1.91[2]
B−V color index +1.57[2]
Radial velocity (Rv)-46.60[5] km/s
Proper motion (μ) RA: +90.76[1] mas/yr
Dec.: +1.24[1] mas/yr
Parallax (π)8.86 ± 0.22[1] mas
Distance368 ± 9 ly
(113 ± 3 pc)
Absolute magnitude (MV)-0.47[6]
Luminosity476[6] L
Temperature3,865[7] K
Other designations
BD+19°27, 89 Pegasi, FK5 1004, GC 270, HIP 1168, HR 45, HD 1013, NSV 99, SAO 91792
Database references

Chi Pegasi (χ Peg) is a class M2+III[4] (red giant) star in the constellation Pegasus. Its apparent magnitude is 4.80[2] and it is approximately 368 light years away based on parallax.[1]


  1. ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. ^ a b c d Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
  3. ^ Eggen, Olin J. (July 1992), "Asymptotic giant branch stars near the sun", Astronomical Journal, 104 (1): 275–313, Bibcode:1992AJ....104..275E, doi:10.1086/116239.
  4. ^ a b Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
  5. ^ Famaey, B.; Pourbaix, D.; Frankowski, A.; Van Eck, S.; Mayor, M.; Udry, S.; Jorissen, A. (2009). "Spectroscopic binaries among Hipparcos M giants". Astronomy and Astrophysics. 498 (2): 627. arXiv:0901.0934. Bibcode:2009A&A...498..627F. doi:10.1051/0004-6361/200810698.
  6. ^ a b Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry
  7. ^ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society. 427: 343. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. Vizier catalog entry