Big news from the world of auctions, where what might well be the single largest astrolabe on Earth is up for sale. And what, ...
May’s evening twilight scene is dominated by two brilliant planets: Venus, of magnitude -4, low in the west-northwest; and Jupiter, of magnitude -2, in the west, to Venus’ upper left. At dusk ...
Its an innovative tool that is IMO compliant, optimized and structured — all from the convenience of a CD-ROM and is designed for use on advanced electronic charting and navigation systems such as ...
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