35 Aquarii

35 Aquarii
Observation data; Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Aquarius
Right ascension	22h 08m 58.99033s
Declination	−18° 31′ 10.5372″
Apparent magnitude (V)	5.80
Characteristics
Spectral type	B2 III
B−V color index	−0.154±0.006
Astrometry
Radial velocity (Rv)	−7.2±0.6 km/s
Proper motion (μ)	RA: −0.102 mas/yr ; Dec.: −8.110 mas/yr
Parallax (π)	1.5115 ± 0.1129 mas
Distance	2,200 ± 200 ly ; (660 ± 50 pc)
Details
Mass	10.1±1.0 M☉
Luminosity	1,622 L☉
Surface gravity (log g)	3.31±0.10 cgs
Temperature	17,400±300 K
Rotational velocity (v sin i)	10 km/s
Age	22.5±2.6 Myr
Other designations
	35 Aqr, BD−19°6227, HD 210191, HIP 109332, HR 8439, SAO 164888, WDS J22091-1829
Database references
SIMBAD	data

35 Aquarii, also known by its Flamsteed designation, is a single^[9] star located approximately 2,200 light years away from the Sun in the zodiac constellation of Aquarius. It is visible to the naked eye as a faint, blue-white star with an apparent visual magnitude of 5.80.^[2] This object is moving closer to Earth with a heliocentric radial velocity of −7 km/s,^[2] and is suspected to be a runaway star, potentially ejected from an open cluster due to a binary–binary interaction.^[10]

This star is a blue giant with a stellar classification of B2 III,^[3] indicating that it is a massive star that has evolved off the main sequence. With an age of around 22.5^[4] million years, it has a relatively low projected rotational velocity of 10 km/s.^[7] The star has a mass of 10^[4] times the mass of the Sun and is radiating 1,622^[5] times the Sun's luminosity from its photosphere at an effective temperature of 17,400 K.^[6]

References

^ ^a ^b ^c ^d ^e 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 Houk, Nancy; Smith-Moore, M. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 4, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1988mcts.book.....H.
^ ^a ^b ^c ^d Tetzlaff, N.; et al. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society, 410 (1): 190–200, arXiv:1007.4883, Bibcode:2011MNRAS.410..190T, doi:10.1111/j.1365-2966.2010.17434.x, S2CID 118629873.
^ ^a ^b Simón-Díaz, S.; et al. (2017), "The IACOB project. III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars", Astronomy and Astrophysics, 597: A22, arXiv:1608.05508, Bibcode:2017A&A...597A..22S, doi:10.1051/0004-6361/201628541, S2CID 3478126.
^ ^a ^b ^c Lyubimkov, Leonid S.; et al. (June 2002), "Surface abundances of light elements for a large sample of early B-type stars - II. Basic parameters of 107 stars", Monthly Notices of the Royal Astronomical Society, 333 (1): 9–26, Bibcode:2002MNRAS.333....9L, doi:10.1046/j.1365-8711.2002.05341.x.
^ ^a ^b Strom, Stephen E.; et al. (2005), "B Star Rotational Velocities in h and χ Persei: A Probe of Initial Conditions during the Star Formation Epoch?", The Astronomical Journal, 129 (2): 809–828, arXiv:astro-ph/0410337, Bibcode:2005AJ....129..809S, doi:10.1086/426748, S2CID 15059129.
^ "35 Aqr". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-16.
^ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
^ Leonard, Peter J. T.; Duncan, Martin J. (February 1990), "Runaway Stars from Young Star Clusters Containing Initial Binaries. II. A Mass Spectrum and a Binary Energy Spectrum", Astronomical Journal, 99: 608, Bibcode:1990AJ.....99..608L, doi:10.1086/115354.

[GaiaDR2-1] 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.

[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.

[houk1978-3] Houk, Nancy; Smith-Moore, M. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 4, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1988mcts.book.....H.

[Tetzlaff2011-4] Tetzlaff, N.; et al. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society, 410 (1): 190–200, arXiv:1007.4883, Bibcode:2011MNRAS.410..190T, doi:10.1111/j.1365-2966.2010.17434.x, S2CID 118629873.

[SimónDíaz2017-5] Simón-Díaz, S.; et al. (2017), "The IACOB project. III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars", Astronomy and Astrophysics, 597: A22, arXiv:1608.05508, Bibcode:2017A&A...597A..22S, doi:10.1051/0004-6361/201628541, S2CID 3478126.

[Lyubimkov2002-6] Lyubimkov, Leonid S.; et al. (June 2002), "Surface abundances of light elements for a large sample of early B-type stars - II. Basic parameters of 107 stars", Monthly Notices of the Royal Astronomical Society, 333 (1): 9–26, Bibcode:2002MNRAS.333....9L, doi:10.1046/j.1365-8711.2002.05341.x.

[Strom2005-7] Strom, Stephen E.; et al. (2005), "B Star Rotational Velocities in h and χ Persei: A Probe of Initial Conditions during the Star Formation Epoch?", The Astronomical Journal, 129 (2): 809–828, arXiv:astro-ph/0410337, Bibcode:2005AJ....129..809S, doi:10.1086/426748, S2CID 15059129.

[SIMBAD-8] "35 Aqr". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-16.

[Eggleton2008-9] Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.

[Leonard1990-10] Leonard, Peter J. T.; Duncan, Martin J. (February 1990), "Runaway Stars from Young Star Clusters Containing Initial Binaries. II. A Mass Spectrum and a Binary Energy Spectrum", Astronomical Journal, 99: 608, Bibcode:1990AJ.....99..608L, doi:10.1086/115354.

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

35 Aquarii

References

Portal di Ensiklopedia Dunia