Book of the Week – De Cometis Libelli Tres 08 Monday Jul 2013 Original size at 2048 × 1782 ≈ Leave a comment Kepler, De Cometis…, 1619 Like this:Like Loading... Share this:Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Like this:Like Loading...