John E. Bortle (Q18379602)
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American amateur astronomer
- John Bortle
Language | Label | Description | Also known as |
---|---|---|---|
English | John E. Bortle |
American amateur astronomer |
|
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Wikipedia(4 entries)
- enwiki John E. Bortle
- frwiki John E. Bortle
- ruwiki Джон Э. Бортль
- zhwiki 約翰·波特爾