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LBV 1806-20 is a blue supergiant star. It is 2,000,000 times brighter than the Sun. It is located in the Sagittarius constellation but due to dust is not visible to the naked eye. The star is 1,135 times larger than the Sun.
- Hutsemékers, D.; Rauw, G.; Nazé, Y. (1 February 2012). "The first X-ray survey of Galactic luminous blue variables". Astronomy & Astrophysics. 538: A47. doi:10.1051/0004-6361/201118040 – via www.aanda.org.