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PMMR 62

Summary

PMMR 62 is a red supergiant star located in the Small Magellanic Cloud in the constellation Tucana. It is one of the largest stars known being 1,306 solar radii. If it was placed in the Solar System, it would engulf the orbit of Jupiter.[3]

PMMR 62

PMMR 62 (blue dot in the middle)
Credit: Université de Strasbourg
Observation data
Epoch J2000      Equinox J2000
Constellation Tucana
Right ascension 00h 53m 47.932s[1]
Declination −72° 02′ 09.487″[1]
Characteristics
Spectral type K3-M1.5 Ia-Ib[2]
Astrometry
Radial velocity (Rv)141.743±1.139[1] km/s
Proper motion (μ) RA: 0.797[1] mas/yr
Dec.: −1.064[1] mas/yr
Details
Radius1,306[a][3] R☉
Luminosity145,000[2] - 250,000[3] L☉
Surface gravity (log g)−0.5[3] cgs
Temperature3,575[3]-4,339[4] K
Other designations
PMMR 62, 2MASS J00534794-7202095, TIC 181447098[1]
Database references
SIMBADdata

See also edit

Notes edit

  1. ^ Applying the Stefan-Boltzmann Law with a nominal solar effective temperature of 5,772 K:
     

References edit

  1. ^ a b c d e f "PMMR 62". Université de Strasbourg.
  2. ^ a b Davies, Ben; Crowther, Paul A.; Beasor, Emma R. (2018). "The luminosities of cool supergiants in the Magellanic Clouds, and the Humphreys–Davidson limit revisited". Monthly Notices of the Royal Astronomical Society. 478 (3): 3138–3148. arXiv:1804.06417. Bibcode:2018MNRAS.478.3138D. doi:10.1093/mnras/sty1302. S2CID 59459492.
  3. ^ a b c d e Dicenzo, Brooke; Levesque, Emily M. (2019). "Atomic Absorption Line Diagnostics for the Physical Properties of Red Supergiants". The Astronomical Journal. 157 (4): 167. arXiv:1902.01862. Bibcode:2019AJ....157..167D. doi:10.3847/1538-3881/ab01cb. S2CID 119076156.
  4. ^ Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; De Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. S2CID 131780028.