Misplaced Pages

67 Aquarii

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Star in the constellation Aquarius
67 Aquarii
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Aquarius
Right ascension 22 43 14.26269
Declination −06° 57′ 46.5752″
Apparent magnitude (V) 6.40
Characteristics
Evolutionary stage main sequence
Spectral type B7.5 V or B9 V
B−V color index −0.039±0.008
Astrometry
Radial velocity (Rv)2.0±3.8 km/s
Proper motion (μ) RA: +26.147 mas/yr
Dec.: −10.192 mas/yr
Parallax (π)8.0002 ± 0.0694 mas
Distance408 ± 4 ly
(125 ± 1 pc)
Absolute magnitude (MV)1.12
Details
Mass2.46±0.05 M
Radius2.0 R
Luminosity41.9+5.5
−4.9 L
Surface gravity (log g)3.998±0.014 cgs
Temperature10,257±48 K
Rotational velocity (v sin i)205 km/s
Age316 Myr
Other designations
67 Aqr, BD−07°5838, FK5 3819, GC 31703, HD 215143, HIP 112179, HR 8647, SAO 146273
Database references
SIMBADdata

67 Aquarii is a star located 484 light years away from the Sun in the zodiac constellation of Aquarius. 67 Aquarii is its Flamsteed designation. It is a dim, blue-white hued star near the lower limit of visibility to the naked eye with an apparent visual magnitude of 6.40. At the distance of this star, its visual magnitude is diminished by an extinction of 0.11 due to interstellar dust. The position of this star near the ecliptic means it is subject to lunar eclipses.

This is a late B-type main-sequence star with a stellar classification of B7.5 V, which indicates it is generating energy through hydrogen fusion at its core. It is 316 million years old and is spinning rapidly with a projected rotational velocity of 205 km/s; the critical velocity for this star is 377 km/s. 67 Aquarii has 2.46 times the mass of the Suns and about double the Sun's radius. It is radiating 42 times the luminosity of the Sun from its photosphere at an effective temperature of 10,257 K.

References

  1. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
  3. ^ Zorec, J.; et al. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy and Astrophysics, 537: A120, arXiv:1201.2052, Bibcode:2012A&A...537A.120Z, doi:10.1051/0004-6361/201117691, S2CID 55586789.
  4. ^ Hube, Douglas P. (1970), "The radial velocities of 335 late B-type stars", Memoirs of the Royal Astronomical Society, 72: 233–280, Bibcode:1970MmRAS..72..233H.
  5. Houk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars", Michigan Spectral Survey, 5, Bibcode:1999MSS...C05....0H.
  6. ^ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics, 367 (2) (Third ed.): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
  7. ^ Huang, Wenjin; et al. (October 2010), "A Stellar Rotation Census of B Stars: From ZAMS to TAMS", The Astrophysical Journal, 722 (1): 605–619, arXiv:1008.1761, Bibcode:2010ApJ...722..605H, doi:10.1088/0004-637X/722/1/605, S2CID 118532653.
  8. ^ Gontcharov, G. A. (November 2012), "Spatial distribution and kinematics of OB stars", Astronomy Letters, 38 (11): 694–706, arXiv:1606.09028, Bibcode:2012AstL...38..694G, doi:10.1134/S1063773712110035, S2CID 119108982.
  9. ^ "67 Aqr". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-18.
  10. Edwards, D. A.; et al. (April 1980), "Photoelectric observations of lunar occultations. XI.", Astronomical Journal, 85: 478–489, Bibcode:1980AJ.....85..478E, doi:10.1086/112700. For example, see SAO 146273 on p. 482
Constellation of Aquarius
Stars
Bayer
Flamsteed
Variable
HR
HD
Other
Exoplanets
Star clusters
Nebulae
Galaxies
NGC
Other
Galaxy clusters
Astronomical events
Category
Categories: