4 Bookmarks by CleverSnail
List of Bookmarks
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Summary
Stars and their brightness are ranked in two ways: by conceived brightness and luminosity. Benny always has been technical, and luminosity is the way to go.
Bookmarked by CleverSnail
29 Aug 2014
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Bookmarked by CleverSnail
15 Jun 2014
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Bookmarked by CleverSnail
26 May 2014
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Bookmarked by CleverSnail
22 May 2014
