| Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 43m 14.26269s [1] |
| Declination | −06° 57′ 46.5752″ [1] |
| Apparent magnitude (V) | 6.40 [2] |
| Characteristics | |
| Evolutionary stage | main sequence [3] |
| Spectral type | B7.5 V [4] or B9 V [5] |
| B−V color index | −0.039±0.008 [2] |
| Astrometry | |
| Radial velocity (Rv) | 2.0±3.8 [2] km/s |
| Proper motion (μ) |
RA: +26.147
[1]
mas/
yr Dec.: −10.192 [1] mas/ yr |
| Parallax (π) | 8.0002 ± 0.0694 mas [1] |
| Distance | 408 ± 4
ly (125 ± 1 pc) |
| Absolute magnitude (MV) | 1.12 [2] |
| Details | |
| Mass | 2.46±0.05 [3] M☉ |
| Radius | 2.0 [6] R☉ |
| Luminosity | 41.9+5.5 −4.9 [3] L☉ |
| Surface gravity (log g) | 3.998±0.014 [7] cgs |
| Temperature | 10,257±48 [3] K |
| Rotational velocity (v sin i) | 205 [3] km/s |
| Age | 316 [8] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
67 Aquarii is a star located 484 [1] light years away from the Sun in the zodiac constellation of Aquarius. 67 Aquarii is its Flamsteed designation. [9] 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. [2] At the distance of this star, its visual magnitude is diminished by an extinction of 0.11 due to interstellar dust. [8] The position of this star near the ecliptic means it is subject to lunar eclipses. [10]
This is a late B-type main-sequence star with a stellar classification of B7.5 V, [4] which indicates it is generating energy through hydrogen fusion at its core. It is 316 [8] million years old and is spinning rapidly with a projected rotational velocity of 205 km/s; [3] the critical velocity for this star is 377 km/s. [7] 67 Aquarii has 2.46 [3] times the mass of the Suns and about double the Sun's radius. [6] It is radiating 42 [3] times the luminosity of the Sun from its photosphere at an effective temperature of 10,257 K. [3]
References
- ^ a b c d e f 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.
- ^ a b c d e 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.
- ^ a b c d e f g h i 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.
- ^ a b 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.
- ^ Houk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars", Michigan Spectral Survey, 5, Bibcode: 1999MSS...C05....0H.
- ^ a b 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.
- ^ a b 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.
- ^ a b c 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.
- ^ a b "67 Aqr". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-18.
- ^ 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
