Ross 47

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Ross 47
Observation data
Epoch J1950.0      Equinox J1950.0
Constellation Orion
Right ascension 5h 39m 14s
Declination +12° 29′ 18″
Apparent magnitude (V) +11.56
Characteristics
Spectral type M4.0Vn
U−B color index +14.264
B−V color index +13.130
Variable type BY Dra
Astrometry
Radial velocity (Rv)105.85 km/s
Parallax (π)171.72 ± 1.06 mas[1]
Distance19.0 ± 0.1 ly
(5.82 ± 0.04 pc)
Absolute magnitude (MV)+12.75
Details
Mass0.35 M☉
Radius118.320 km R☉
Luminosity0.00069 L☉
Other designations
V1352 Ori, GJ 213[2], HIP 26857[3], AC +12°1800-213, Ci 20 344[4], G 102-22, LFT 425, LHS 31[5], LTT 11704, NLTT 15489[6], PLX 1305[7], Ross 47[8], TYC 722-455-1[9], GSC 00722-00455, 2MASS J05420897+1229252
Database references
SIMBADdata

Ross 47 is a flare star of spectral type M4, located in constellation Orion at 18.99 light-years from Earth.[1]

References

  1. ^ a b Gatewood, George (2008). "Astrometric Studies of Aldebaran, Arcturus, Vega, the Hyades, and Other Regions". The Astronomical Journal. 136 (1): 452–460. Bibcode:2008AJ....136..452G. doi:10.1088/0004-6256/136/1/452.
  2. ^ Gliese, W.; Jahreiß, H. (1991). "Gl 213". Preliminary Version of the Third Catalogue of Nearby Stars. {{cite web}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
  3. ^ Perryman; et al. (1997). "HIP 26857". The Hipparcos and Tycho Catalogues.
  4. ^ Porter, J. G.; Yowell, E. J.; Smith, E. S. (1930). "A catalogue of 1474 stars with proper motion exceeding four-tenths year". Publications of the Cincinnati Observatory. 20: 1–32. Bibcode:1930PCinO..20....1P. Page 9 (Ci 20 344).
  5. ^ Luyten, Willem Jacob (1979). "LHS 31". LHS Catalogue, 2nd Edition.
  6. ^ Luyten, Willem Jacob (1979). "NLTT 15489". NLTT Catalogue.
  7. ^ Van Altena W. F.; Lee J. T.; Hoffleit E. D. (1995). "GCTP 1305". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.).
  8. ^ Ross, Frank E. (1925). "New proper-motion stars, (first list)". Astronomical Journal. 36 (852–853): 96–99. Bibcode:1925AJ.....36...96R. doi:10.1086/104687. Page 97 (Ross 47)
  9. ^ Perryman; et al. (1997). "HIP 26857". The Hipparcos and Tycho Catalogues.

Notes

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