Astronomy:WOH S264
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Dorado (LMC) |
| Right ascension | 05h 24m 19.3095s[1] |
| Declination | −69° 38′ 49.374″[1] |
| Apparent magnitude (V) | 14.271[2] |
| Characteristics | |
| Evolutionary stage | Red supergiant |
| Spectral type | M3 I[3] |
| Apparent magnitude (U) | 19.519[4] |
| Apparent magnitude (B) | 16.688[4] |
| Apparent magnitude (R) | 11[4] |
| Apparent magnitude (G) | 12.135779[5] |
| Apparent magnitude (I) | 10.804[4] |
| Apparent magnitude (J) | 8.36[4] |
| Apparent magnitude (H) | 7.375[4] |
| Apparent magnitude (K) | 6.809[4] |
| Astrometry | |
| Radial velocity (Rv) | 263.49±1.02[6] km/s |
| Parallax (π) | 0.0457 ± 0.027[5] mas |
| Distance | 45,590[7] pc |
| Details | |
| Mass | 24.9[8] M☉ |
| Radius | 1,390+130 −110[3] R☉ |
| Luminosity | 281,838+49,262 −41,955[3] L☉ |
| Surface gravity (log g) | +0.5±0.1[3] cgs |
| Temperature | 3,570+59 −46[3] K |
| Other designations | |
WOH S264, LI-LMC 976, MSX LMC 461, RM 1-339, SP77 47-10[1] | |
| Database references | |
| SIMBAD | data |
WOH S264 ([W60] B90) is a large, highly luminous[3] red supergiant star in the Large Magellanic Cloud.
Discovery
WOH S264 was discovered in 1956 by Karl Gordon Henize in a catalogue of H-alpha emission stars and nebulae in the Large Magellanic Cloud. He designated it LHA 120-N 132E, indicating emission line nebula 132E on plate 120. The LHA is originally LHα, standing for H-alpha emission objects identified at the Lamont-Hussey Observatory.[9]
The designation WOH S264 indicates that it is supergiant 264 in a 1981 survey by Westerlund, Olander, and Hedin.[10]
Properties
WOH S264 is believed to be one of the largest, most luminous red supergiants in the Large Magellanic Cloud with a luminosity of more than 280,000 solar luminosities and a radius of around 1,390 solar radii.[3] It needs further investigation to constrain the luminosity and radius with higher certainty.[3]
See also
References
- ↑ 1.0 1.1 1.2 "[W60 B90"]. Université de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=%5BW60%5D+B90&submit=submit+id.
- ↑ Ulaczyk, K.; Szymański, M. K.; Udalski, A.; Kubiak, M.; Pietrzyński, G.; Soszyński, I.; Wyrzykowski, Ł.; Poleski, R. et al. (20 June 2013). "Variable Stars from the OGLE-III Shallow Survey in the Large Magellanic Cloud". Acta Astronomica 63 (2): 159–179. Bibcode: 2013AcA....63..159U. http://acta.astrouw.edu.pl/Vol63/n2/a_63_2_3.html.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 de Wit, S.; Bonanos, A.Z.; Tramper, F.; Yang, M.; Maravelias, G.; Boutsia, K.; Britavskiy, N.; Zapartas, E. (2023). "Properties of luminous red supergiant stars in the Magellanic Clouds". Astronomy and Astrophysics 669: 17. doi:10.1051/0004-6361/202243394.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 Kamath, D.; Wood, P. R.; Van Winckel, H. (4 August 2015). "Optically visible post-AGB stars, post-RGB stars and young stellar objects in the Large Magellanic Cloud". The Royal Astronomical Society 454 (2): 1468–1502. doi:10.1093/mnras/stv1202. Bibcode: 2015MNRAS.454.1468K.
- ↑ 5.0 5.1 Brown, A. G. A. (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics 649: A1. doi:10.1051/0004-6361/202039657. Bibcode: 2021A&A...649A...1G. Gaia EDR3 record for this source at VizieR.
- ↑ Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ Pietrzyński, G.; Graczyk, D.; Gallenne, A.; Gieren, W.; Thompson, I. B.; Pilecki, B.; Karczmarek, P.; Górski, M. et al. (2019). "A distance to the Large Magellanic Cloud that is precise to one per cent". Nature 567 (7747): 200–203. doi:10.1038/s41586-019-0999-4. PMID 30867610. Bibcode: 2019Natur.567..200P.
- ↑ Ren, Yi; Jiang, Bi-Wei (2020-07-20). "On the Granulation and Irregular Variation of Red Supergiants" (in en). The Astrophysical Journal 898 (1): 24. doi:10.3847/1538-4357/ab9c17. ISSN 1538-4357. Bibcode: 2020ApJ...898...24R.
- ↑ Henize, Karl G. (1956-05-05). "Catalogues of Hα-emission Stars and Nebulae in the Magellanic Clouds.". Astrophysical Journal 2: 315. doi:10.1086/190025. Bibcode: 1956ApJS....2..315H.
- ↑ Westerlund, B. E.; Olander, N.; Hedin, B. (1981). "Supergiant and giant M type stars in the Large Magellanic Cloud". Astronomy & Astrophysics Supplement Series 43: 267–295. Bibcode: 1981A&AS...43..267W.
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