67 Aquarii

67 Aquarii
Observation data; Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Aquarius
Right ascension	22h 43m 14.26269s
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
Distance	408 ± 4 ly ; (125 ± 1 pc)
Absolute magnitude (MV)	1.12
Details
Mass	2.46±0.05 M☉
Radius	2.0 R☉
Luminosity	41.9+5.5; −4.9 L☉
Surface gravity (log g)	3.998±0.014 cgs
Temperature	10,257±48 K
Rotational velocity (v sin i)	205 km/s
Age	316 Myr
Other designations
	67 Aqr, BD−07°5838, FK5 3819, GC 31703, HD 215143, HIP 112179, HR 8647, SAO 146273
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

[GaiaDR2-1] ^ ^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.

[Anderson2012-2] 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.

[zorec2012-3] ^ ^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.

[Hube1970-4] 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.

[Houk1999-5] Houk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars", Michigan Spectral Survey, 5, Bibcode:1999MSS...C05....0H.

[PasinettiFracassini2001-6] 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.

[Huang2010-7] 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.

[Gontcharov2012-8] 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.

[SIMBAD-9] "67 Aqr". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-18.

[Edwards1980-10] 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

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67 Aquarii

References

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