1 Centauri

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Not to be confused with A centauri.
1 Centauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus
Right ascension 13h 45m 41.24s[1]
Declination −33° 02′ 37.4″[1]
Apparent magnitude (V) +4.23
Characteristics
Spectral type F3IV
U−B color index 0.00
B−V color index +0.38
Variable type none
Astrometry
Radial velocity (Rv) −22 km/s
Proper motion (μ) RA: −462.49±0.18[1] mas/yr
Dec.: −146.49±0.16[1] mas/yr
Parallax (π) 51.54 ± 0.19[1] mas
Distance 63.3 ± 0.2 ly
(19.40 ± 0.07 pc)
Absolute magnitude (MV) +2.81[2]
Details
Mass 1.35[2] M
Rotation 9.9 days[2]
Rotational velocity (v sin i) 86[2] km/s
Other designations
i Centauri, HR 5168, HD 119756, Gl 525.1, CD−32°9603, FK5 506, HIP 67153, SAO 204812, GC 18593
Database references
SIMBAD data

1 Centauri is a star in the constellation Centaurus.

1 Centauri is a yellow-white F-type subgiant with an apparent magnitude of +4.23. It is approximately 63 light years from Earth.

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b c d Pizzolato, N.; Maggio, A.; Sciortino, S. (September 2000), "Evolution of X-ray activity of 1-3 Msun late-type stars in early post-main-sequence phases", Astronomy and Astrophysics 361: 614–628, Bibcode:2000A&A...361..614P