description LBV 1806-20 Overview
LBV 1806-20 is a luminous blue variable star located near the center of the Milky Way galaxy. It resides in a dense star-forming cluster that also contains a soft gamma repeater, a type of highly magnetic neutron star. When identified, it was considered one of the most luminous stars known in the galaxy, emitting energy equivalent to millions of Suns. This massive star is a target for astrophysicists studying stellar evolution and the extreme environments near the galactic center.
help LBV 1806-20 FAQ
Is LBV 1806-20 still considered the most luminous star known?
It was once presented as a candidate for that distinction, but its luminosity is difficult to determine because of heavy interstellar extinction and uncertainty over whether it is a binary. Stars such as R136a1 are now more commonly cited in discussions of the highest known stellar luminosities.
Is LBV 1806-20 the source of the giant gamma-ray flare from SGR 1806-20?
No. SGR 1806-20 is a separate magnetar in the same heavily obscured star-forming region, and it produced the famous giant flare observed in December 2004.
Why is LBV 1806-20 so difficult to observe?
Dense dust toward the Galactic center region blocks much of its visible light. Astronomers therefore study LBV 1806-20 extensively at infrared wavelengths.
What does LBV mean in the name LBV 1806-20?
LBV stands for luminous blue variable, a rare class of extremely luminous, evolved massive stars. Well-known members or candidates include Eta Carinae and the Pistol Star.
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