R Leonis Minoris

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 34.28405s[2]
Declination +34° 30′ 42.8091″[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: +1.657 mas/yr[2]
Dec.: −1.734 mas/yr[2]
Parallax (π)3.496±0.142 mas[6]
Distance930 ± 40 ly
(290 ± 10 pc)
Details
Radius348 – 411[6] R☉
Luminosity5,288+348
−327[6] L☉
Surface gravity (log g)−0.65 to −0.61[6] cgs
Temperature2,730[6] K
Other designations
R LMi, HD 84346, HIP 47886, SAO 61669, BD+35° 2050
Database references
SIMBADdata

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.[7]

References

  1. ↑ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
  2. 1 2 3 4 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. 1 2 3 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. 1 2 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 "Compilation of Eggen's UBV data, transformed to UBV (unpublished)".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. 1 2 3 4 5 Béguin, E.; Chiavassa, A.; Ahmad, A.; Freytag, B.; Uttenthaler, S. (2024-10-01). "Retrieving stellar parameters and dynamics of AGB stars with Gaia parallax measurements and CO5BOLD RHD simulations". Astronomy & Astrophysics. 690: A125. arXiv:2409.03422. doi:10.1051/0004-6361/202450245. ISSN 0004-6361.
  7. ↑ Watson, Christopher (4 January 2010). "R Leonis Minoris". AAVSO Website. American Association of Variable Star Observers. Retrieved 22 July 2014.


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