VX Sagittarii

VX Sagittarii, one of Red supergiant star.

VX Sagittarii, also known as HIP 88838, is a red hypergiant star with a diameter pulsating between 1.120[1] and 1.940 times Sun,[2] a temperature between 3.200 and 3.400 degrees Kelvin.[3] The star has a pulsation period of 732 days and is located 1.5 kiloparsecs away from the Earth. Older studies show significantly higher temperatures.[4][5]

References

  1. ↑ Xu, Shuangjing; Zhang, Bo; Reid, Mark J.; Menten, Karl M.; Zheng, Xingwu; Wang, Guangli (May 2018). "The Parallax of the Red Hypergiant VX Sgr with Accurate Tropospheric Delay Calibration". The Astrophysical Journal. 859 (1): 14. arXiv:1804.00894. Bibcode:2018ApJ...859...14X. doi:10.3847/1538-4357/aabba6. ISSN 0004-637X. S2CID 55572194.
  2. ↑ Lockwood, G. W.; Wing, Robert F. (1982-02-01). "The light and spectrum variations of VX Sagittarii, an extremely cool supergiant". Monthly Notices of the Royal Astronomical Society. 198 (2): 385–404. doi:10.1093/mnras/198.2.385. ISSN 0035-8711.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  3. ↑ Chiavassa, A.; Lacour, S.; Millour, F.; Driebe, T.; Wittkowski, M.; Plez, B.; Thiébaut, E.; Josselin, E.; Freytag, B. (2010-02-01). "VLTI/AMBER spectro-interferometric imaging of VX Sagittarii's inhomogenous outer atmosphere". Astronomy & Astrophysics. 511: A51. arXiv:0911.4422. Bibcode:2010A&A...511A..51C. doi:10.1051/0004-6361/200913288. ISSN 0004-6361. S2CID 55877127.
  4. ↑ de Jager, C.; Nieuwenhuijzen, H.; van der Hucht, K. A. (1988-02-01). "Mass loss rates in the Hertzsprung-Russell diagram". Astronomy and Astrophysics Supplement Series. 72: 259–289. Bibcode:1988A&AS...72..259D. ISSN 0365-0138.
  5. ↑ Mauron, N.; Josselin, E. (2011-02-01). "The mass-loss rates of red supergiants and the de Jager prescription". Astronomy & Astrophysics. 526: A156. arXiv:1010.5369. Bibcode:2011A&A...526A.156M. doi:10.1051/0004-6361/201013993. ISSN 0004-6361. S2CID 119276502.