Beta Horologii

β Horologii
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Horologium
Right ascension 02h 58m 47.7967s[1]
Declination −64° 04 16.623[1]
Apparent magnitude (V) 4.979[1]
Characteristics
Spectral type A4IIIm...[1]
U−B color index +0.15[2]
B−V color index +0.13[2]
R−I color index +0.05[2]
Astrometry
Radial velocity (Rv)23.6 ± 2[1] km/s
Proper motion (μ) RA: 22.96[1] mas/yr
Dec.: 5.39[1] mas/yr
Parallax (π)10.40 ± 0.50[1] mas
Distance310 ± 20 ly
(96 ± 5 pc)
Absolute magnitude (MV)0.1[3]
Details
Radius1.40[4] R
Rotational velocity (v sin i)84[2] km/s
Other designations
β Hor, Beta Horologii, Beta Hor, CPD−64 215, FK5 2212, GC 3611, HD 18866, HIP 13884, HR 909, PPM 353263, SAO 248701.[1]
Database references
SIMBADdata

Beta Horologii (Beta Hor, β Horologii, β Hor) is the third brightest star in the constellation of Horologium. It is an A-type giant star with an apparent visual magnitude of approximately 4.979, and is a chemically peculiar star of the metallic-line type.[1]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 * bet Hor -- Star, database entry, SIMBAD. Accessed on line September 18, 2008.
  2. 2.0 2.1 2.2 2.3 HR 909, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line September 18, 2008.
  3. From apparent magnitude and parallax.
  4. HD 18866, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line September 18, 2008.

External links