Sunday, January 4, 2026

Fomalhaut

25 lightyears away is a bright star in the Southern Fish - Pisces Australis - which we call Fomalhaut. It is a young star of A type, so is bright to us. In the last few decades we've found that two other stars, the variable TW P.A. and also LP 876-10 [P.A.], were formed around the same time and place and going in about the same direction. As Proxima is now known as bound to the Alpha Centauri binary, so C; so might be Fomalhaut B and C.

Also found: debris. Young stars especially large ones seem to get those. There was a bright spot imaged in A's debris in 2008, which - they said - was a planet. But then it dimmed.

A couple weeks back they caught another one. Instead, "F b" was - is - probably a dust cloud from a collision.

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