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
SIMBAD data

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.


Stub icon

This giant-star-related article is a stub. You can help Wikipedia by expanding it.

Stub icon

This variable star–related article is a stub. You can help Wikipedia by expanding it.

Retrieved from " https://en.wikipedia.org/?title=LP_Aquarii&oldid=1188064948"