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R Leonis Minoris

Summary

R Leonis Minoris (R LMi) is a Mira variable type star in the constellation Leo Minor. It ranges between apparent magnitude 6.3 and 13.2, and spectral types M6.5e to M9.0e (Tc:), over a period of 372 days.[8]

R Leonis Minoris

The visual band light curve of R Leonis Minoris, from AAVSO data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Leo Minor
Right ascension 09h 45m 34.28304s[2]
Declination +34° 30′ 42.7839″[2]
Apparent magnitude (V) 6.3 - 13.2[3]
Characteristics
Spectral type M6.5e to M9.0e (Tc:)[3]
U−B color index +0.55[4]
B−V color index +1.32[4]
Variable type Mira[3]
Astrometry
Radial velocity (Rv)-10.00 ± 4.6[5] km/s
Proper motion (μ) RA: 4.00[2] mas/yr
Dec.: −5.94[2] mas/yr
Parallax (π)2.88 ± 1.88 mas[2]
Distanceapprox. 1,100 ly
(approx. 300 pc)
Details
Radius569 ± 146[6] R☉
Luminosity5,330[7] L☉
Temperature2,648[7] K
Other designations
R LMi, HD 84346, HIP 47886, SAO 61669, BD+35° 2050
Database references
SIMBADdata

References edit

  1. ^ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
  2. ^ a b c d e van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
  3. ^ a b c Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
  4. ^ a b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode:1986EgUBV........0M.
  5. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
  6. ^ Van Belle, G. T.; Thompson, R. R.; Creech-Eakman, M. J. (2002). "Angular Size Measurements of Mira Variable Stars at 2.2 Microns. II". The Astronomical Journal. 124 (3): 1706–1715. arXiv:astro-ph/0210167. Bibcode:2002AJ....124.1706V. doi:10.1086/342282. S2CID 33832649.
  7. ^ a b McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–357. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. S2CID 118665352.
  8. ^ Watson, Christopher (4 January 2010). "R Leonis Minoris". AAVSO Website. American Association of Variable Star Observers. Retrieved 22 July 2014.