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LP Aquarii

From Wikipedia, the free encyclopedia

LP Aquarii

A light curve for LP Aquarii, plotted from Hipparcos data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 22h 42m 06.026s[2]
Declination −05° 06′ 07.03″[2]
Apparent magnitude (V) 6.30 - 6.64[3]
Characteristics
Spectral type M4III[4]
Variable type Lb[5]
Astrometry
Radial velocity (Rv)−175.81[2] km/s
Proper motion (μ) RA: +69.323 mas/yr[2]
Dec.: −49.636 mas/yr[2]
Parallax (π)3.6849 ± 0.1178 mas[2]
Distance890 ± 30 ly
(271 ± 9 pc)
Absolute magnitude (MV)−0.307[6]
Details
Mass1.558[7] M☉
Radius83+15
−11[8] R☉
Luminosity1,011±66[8] L☉
Surface gravity (log g)0.476[9] cgs
Temperature3,582+254
−278[8] K
Metallicity [Fe/H]−0.045[7] dex
Other designations
LP Aqr, BD−05°5843, HD 214983, HIP 112078, SAO 146251, CCDM J22421-0507A[10]
Database references
SIMBADdata

LP Aquarii is a pulsating variable star in the constellation of Aquarius that varies between magnitudes 6.30 and 6.64.[3] The position of the star near the ecliptic means it is subject to lunar occultations.[11]

References

  1. ^ "/ftp/cats/more/HIP/cdroms/cats". Centre de Données astronomiques de Strasbourg. Strasbourg astronomical Data Center. Retrieved 15 October 2022.
  2. ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. ^ a b Watson, Christopher (4 January 2010). "LP Aquarii". AAVSO Website. American Association of Variable Star Observers. Retrieved 20 July 2014.
  4. ^ Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars". Michigan Spectral Survey. 5. Bibcode:1999MSS...C05....0H.
  5. ^ Samus, N. N.; Durlevich, O. V.; et al. (2009). "General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
  6. ^ Gontcharov, G. A. (2011). "The red giant branch in the Tycho-2 catalogue". Astronomy Letters. 37 (10): 707–717. arXiv:1607.00557. Bibcode:2011AstL...37..707G. doi:10.1134/S1063773711090040. S2CID 119272127.
  7. ^ a b Huber, Daniel; Bryson, Stephen T.; Haas, Michael R.; Barclay, Thomas; Barentsen, Geert; Howell, Steve B.; Sharma, Sanjib; Stello, Dennis; Thompson, Susan E. (2016). "The K2 Ecliptic Plane Input Catalog (Epic) and Stellar Classifications of 138,600 Targets in Campaigns 1–8". The Astrophysical Journal Supplement Series. 224 (1): 2. arXiv:1512.02643. Bibcode:2016ApJS..224....2H. doi:10.3847/0067-0049/224/1/2. S2CID 118621218.
  8. ^ a b c 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.
  9. ^ McDonald, I.; Zijlstra, A. A.; Watson, R. A. (2017). "Fundamental parameters and infrared excesses of Tycho-Gaia stars". Monthly Notices of the Royal Astronomical Society. 471 (1): 770. arXiv:1706.02208. Bibcode:2017MNRAS.471..770M. doi:10.1093/mnras/stx1433. S2CID 73594365.
  10. ^ "LP Aqr". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-11-24.
  11. ^ Morbey, C. L.; et al. (December 1978). "Photoelectric Observations of Lunar Occultations at the D.A.O.". Journal of the Royal Astronomical Society of Canada. 72: 305. Bibcode:1978JRASC..72..305M.


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This page was last edited on 3 December 2023, at 03:43
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