Rho Cygni

ρ Cygni


Location of ρ Cygni (circled)

Observation data
Epoch J2000      Equinox J2000
Constellation Cygnus
Right ascension 21h 33m 58.85298s[1]
Declination 45° 35′ 30.6179″[1]
Apparent magnitude (V) 4.02 [2]
Characteristics
Spectral type G8IIIFe-0.5[3]
U−B color index +0.56[2]
B−V color index +0.89[2]
Astrometry
Radial velocity (Rv)+6.88[4] km/s
Proper motion (μ) RA: -23.79[1] mas/yr
Dec.: -93.70[1] mas/yr
Parallax (π)26.39 ± 0.15[1] mas
Distance123.6 ± 0.7 ly
(37.9 ± 0.2 pc)
Absolute magnitude (MV)1.11[5]
Details
Mass2.16[6] M☉
Radius7.81[6] R☉
Luminosity37.1[6] L☉
Temperature5,100[6] K
Other designations
73 Cygni, FK5 1568, GC 30207, HIP 106481, HR 8252, HD 205435, SAO 51035
Database references
SIMBADdata

Rho Cygni (ρ Cyg) is a class G8III[3] (yellow giant) star in the constellation Cygnus. Its apparent magnitude is 4.02[2] and it is approximately 123.6 light years away based on parallax.[1]

References

  1. 1 2 3 4 5 6 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. 1 2 3 4 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: 0. Bibcode:2002yCat.2237....0D.
  3. 1 2 Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars". Astrophysical Journal Supplement Series. 71: 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373.
  4. ↑ Soubiran, C.; et al. (March 2008), "Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants", Astronomy and Astrophysics, 480 (1): 91–101, arXiv:0712.1370Freely accessible, Bibcode:2008A&A...480...91S, doi:10.1051/0004-6361:20078788
  5. ↑ Da Silva, Ronaldo; Milone, André de C.; Rocha-Pinto, Helio J. (August 2015). "Homogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets.". Astronomy and Astrophysics. 580A: 24–42. Bibcode:2015A&A...580A..24D. doi:10.1051/0004-6361/201525770. Vizier catalog entry
  6. 1 2 3 4 Reffert, Sabine; Bergmann, Christoph; Quirrenbach, Andreas; Trifonov, Trifon; Künstler, Andreas (2015). "Precise radial velocities of giant stars. VII. Occurrence rate of giant extrasolar planets as a function of mass and metallicity.". Astronomy and Astrophysics. 574A (2): 116–129. arXiv:1412.4634Freely accessible. Bibcode:2015A&A...574A.116R. doi:10.1051/0004-6361/201322360. Vizier catalog entry
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