Theta Pavonis

θ Pavonis
Diagram showing star positions and boundaries of the Pavo constellation and its surroundings


Location of θ Pavonis (circled)

Observation data
Epoch J2000      Equinox J2000
Constellation Pavo
Right ascension 18h 48m 37.90542s [1]
Declination −65° 04′ 39.6449″
Apparent magnitude (V) 5.73 [2]
Characteristics
Spectral type A8V [1]
U−B color index +0.11
B−V color index +0.24 [3]
Astrometry
Radial velocity (Rv)0.7 ± 4.3[4] km/s
Proper motion (μ) RA: -38.07 mas/yr
Dec.: -78.20 mas/yr
Parallax (π)14.77 ± 0.34[5][6] mas
Distance221 ± 5 ly
(68 ± 2 pc)
Absolute magnitude (MV)1.58
Details
Mass1.86 [7] M☉
Radius2.640 [8] R☉
Luminosity20.04 L☉
Surface gravity (log g)4.01 [9] cgs
Temperature7886 [10] K
Rotational velocity (v sin i)245.0 [11] km/s
Other designations
Theta Pavonis, θ Pavonis, Theta Pav, θ Pav, GSC 09077-02488, 2MASS J18483791-6504397, TD1 23057, CPC 21 4384, HD 173168, N30 4164, TYC 9077-2488-1, CPD-65 3754, HIC 92294, PPM 363593, UBV 15922, GC 25706, HIP 92294, ROT 2646, UBV M 23175, GCRV 11216, HR 7036, SAO 254374, uvby98 100173168[1]
Database references
SIMBADdata

Theta Pavonis (θ Pav) is a white main-sequence star in the constellation Pavo. At 221 light-years away, it shines at an apparent visual magnitude of 5.73.

References

  1. 1 2 3 "Theta Pavonis", SIMBAD, Centre de Données astronomiques de Strasbourg, retrieved 2015-02-25
  2. ↑ "BSC5P - Bright Star Catalog".
  3. ↑ Johnson, H. L.; et al. (1966). "UBVRIJKL photometry of the bright stars". Communications of the Lunar and Planetary Laboratory. Bibcode:1966CoLPL...4...99J.
  4. ↑ "Pulkovo radial velocities for 35493 HIP stars (Gontcharov, 2006)".
  5. ↑ "HIPNEWCAT".
  6. ↑ Van Leuuwen, F. (2007), Validation of the new Hipparcos reduction, Astronomy & Astrophysics, retrieved 2015-02-26
  7. ↑ "Fundamental parameters of stars (Allende Prieto+, 1999)".
  8. ↑ "Effective temperatures and radii of stars (Masana+, 2006)".
  9. ↑ "Estimated astrophysical parameters from uvby (Philip+ 1980)".
  10. ↑ "Teff and metallicities for Tycho-2 stars (Ammons+, 2006)".
  11. ↑ "Catalog of Stellar Rotational Velocities (Glebocki+ 2005)".
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