Per Collinder

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Per Collinder
Born 22 May 1890
Sundsvall, Sweden
Died 6 December 1974 (age 84)
Uppsala, Sweden
Nationality Swedish
Occupation astronomer

Per Collinder (22 May 1890 – 6 December 1974) was a Swedish astronomer.

Born at Sundsvall, he is known for a catalog of open clusters that he published in 1931, which is today known as the Collinder catalog. He has written the books History of navigation and Worlds in Orbit.

He was married twice, and his first wife gave him four children.[1] Collinder died at Uppsala.

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