Ko Arimatsu 有松亘
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arimatsu.bsky.social
Ko Arimatsu 有松亘
@arimatsu.bsky.social
1.3K followers 120 following 510 posts
天文家です.
石垣島天文台 室長 （国立天文台 講師）.

Astronomer at NAOJ.
Namesake of a minor planet 27590.
OASES/PONCOTS/TABASCO project

https://arimatsuko.com
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