SCR J1546−5534

SCR J1546-5534
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Norma
Right ascension 15h 46m 41.69131s[1]
Declination −55° 34′ 47.4865″[1]
Characteristics
Spectral type M7.5[2]
Astrometry
Proper motion (μ) RA: −254.533[1] mas/yr
Dec.: −251.335[1] mas/yr
Parallax (π)119.0962 ± 0.7032 mas[1]
Distance27.4 ± 0.2 ly
(8.40 ± 0.05 pc)
Details
Temperature2700[2] K
Other designations
2MASS J15464185-5534468[3]
Database references
SIMBADdata

SCR J1546−5534 is a red dwarf star located in the constellation Norma. Identified in 2011, it was the reddest and second nearest object discovered in the SuperCOSMOS-RECONS (SCR) searches of the sky where proper motions were analysed.[4] Optical analysis of its spectrum yields an effective (surface) temperature of 2700 K and spectrum of M7.5.[2]

References

  1. ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ a b c Rajpurohit, A. S.; Reylé, C.; Allard, F.; Homeier, D.; Schultheis, M.; Bessell, M. S.; Robin, A. C. (2013). "The effective temperature scale of M dwarfs". Astronomy & Astrophysics. 556: 14. arXiv:1304.4072. Bibcode:2013A&A...556A..15R. doi:10.1051/0004-6361/201321346. S2CID 59059366.
  3. ^ "SCR J1546-5534". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-11-30.
  4. ^ Boyd, Mark R.; Henry, Todd J.; Jao, Wei-Chun; Subasavage, John P.; Hambly, Nigel C. (2011). "The Solar Neighborhood. XXVII. Discovery of New Proper Motion Stars with μ ≥ 0".18 yr−1 in the Southern Sky with 16.5 ≤ R59F ≤ 18.0". The Astronomical Journal. 142 (3): 9. arXiv:1107.4547. Bibcode:2011AJ....142...92B. doi:10.1088/0004-6256/142/3/92. S2CID 118596107. 92.


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