LP 71-82

Coordinates: Sky map 18h 02m 16.60s, +64° 15′ 44.6″
Source: Wikipedia, the free encyclopedia.
LP 71-82

An R band light curve for LP 71-82 showing flares, adapted from Baran et al. (2013)[1]
Observation data
J2000.0
Constellation Draco
Right ascension 18h 02m 16.60s
Declination 64° 15′ 44.6″
Apparent magnitude (V) 13.51[1]
Characteristics
Spectral type M5.0V
Apparent magnitude (J) 8.54[2]
Distance
25.420 ± 0.006 ly
(7.794 ± 0.002 pc)
Details
Gyr
NLTT 45873, GSC 04209-01465, 2MASS
J18021660+6415445
Database references
SIMBADdata

LP 71-82 is a

Ursa Major Moving Group.[6]

Multiplicity surveys do not found any stellar companions to LP 71-82 as in 2014.[7]

Physical properties

LP 71-82 is a flare star with a very strong activity,[1] with at least four flares detected by 2019.[5] Such activity is expected for a star with a short rotational period of just 6 hours. As a low mass star, it is fully convective. It is visible nearly pole-on, with rotational axis deflected from the Sun by 19±3° degrees.[4] The star has a magnetic fields in chromosphere in 3.8-4.7 kilogauss range.[8]

References

  1. ^ a b c Mt. Suhora Survey – Searching for Pulsating M Dwarfs. III
  2. doi:10.1051/0004-6361/201732054
  3. ^
    doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR
    .
  4. ^
    S2CID 218718929
  5. ^
    S2CID 209323915
  6. ^ Reliable probabilistic determination of membership in stellar kinematic groups in the young disk, Table 4
  7. S2CID 118403775
  8. S2CID 139101130


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