Beta Equulei

β Equulei
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Equuleus
Right ascension 21h 22m 53.6127s[1]
Declination +06° 48′ 40.106″[1]
Apparent magnitude (V) 5.159[1]
Characteristics
Spectral type A3V[1]
U−B color index +0.07[2]
B−V color index +0.05[2]
Astrometry
Radial velocity (Rv)−11.1 ± 0.9[1] km/s
Proper motion (μ) RA: 52.66[1] mas/yr
Dec.: 11.15[1] mas/yr
Parallax (π)9.06 ± 0.88[1] mas
Distance360 ± 30 ly
(110 ± 10 pc)
Absolute magnitude (MV)−0.1[3]
Details
Radius1.5[4] R☉
Rotational velocity (v sin i)78[2] km/s
Other designations
β Equ, Beta Equulei, Beta Equ, 10 Equulei, 10 Equ, BD+06 4811, HD 203562, HIP 105570, HR 8178, SAO 126749, WDS 21229+0649A.[1]
Database references
SIMBADdata

Beta Equulei (Beta Equ, β Equulei, β Equ) is an A-type main sequence star in the constellation of Equuleus.[2] It has an overall apparent visual magnitude of approximately 5.159.[1]

β Equulei has four optical visual companions. They are not physically related to the star described above.[2]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 * bet Equ -- Star in double system, database entry, SIMBAD. Accessed on line September 10, 2008.
  2. ↑ 2.0 2.1 2.2 2.3 2.4 HR 8178, 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 10, 2008.
  3. ↑ From apparent magnitude and parallax.
  4. ↑ HD 203562, 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 10, 2008.