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  Category:Subgiant stars – Wikimedia Commons

  https://commons.wikimedia.org/wiki/Category:Subgiant_stars?uselang=de

  Keine Beschreibung vorhanden.

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  Glossary of Astronomical Terms

  http://wayback.archive.org/web/20110809155127/http://www.deepfly.org/TheNeighborhood/Glossary.html

  Keine Beschreibung vorhanden.

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