R Ursae Minoris

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R Ursae Minoris

A visual band light curve for R Ursae Minoris, plotted from AAVSO data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Ursa Minor
Right ascension 16h 29m 57.8923s[2]
Declination +72° 16′ 49.166″[2]
Apparent magnitude (V) 8.5-11.5[3]
Characteristics
Spectral type M7IIIe[3]
Variable type semiregular variable[3]
Distance
1,220 ± 30 ly
(375 ± 9 pc)
Absolute magnitude (MV)+2.461[4] (var)
Details
dex
HIP 80802[7]
Database references
SIMBADdata

R Ursae Minoris is a

Ursa Minor. A red giant of spectral type M7IIIe, it is a semiregular variable ranging from magnitude 8.5 to 11.5 over a period of 325 days.[3]

References

  1. ^ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
  2. ^
    doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR
    .
  3. ^ a b c d Watson, Christopher (4 January 2010). "RR Ursae Minoris". AAVSO Website. American Association of Variable Star Observers. Retrieved 10 March 2015.
  4. Bibcode:2017yCat..90370769G
    .
  5. ^
    Bibcode:2022yCat.1354....0A
    .
  6. S2CID 237605138
    .
  7. ^ "R UMi". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-10-10.


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