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Moon The Moon is the only world we can see from Earth that shows a disc. The Moon is the only other world human beings have ever set foot on (Apollo missions). The Moon is the only satellite that has a tug-of-war ratio less than 1. What this means is the Sun has a greater pull on the Moon than the Earth does. Nowhere in the Moon's orbit is there a place where the orbit is convex (moving away from the Sun) to the Sun. In fact, the Moon's orbit is like a rounded 13-sided polygon. The Canadian record for "young moon" sightings is held by Warren Morrison of Bailieboro, Ontario, who observed a hair thin crescent by telescope and binoculars only 15 hours and 30 minutes after new moon on March 16, 1991. Source: Toronto Star, April 9, 1995, Terrence Dickinson, direct quote of part of his weekly Universe column.The world record for "young moon" sightings is by Jim Stamm on January 21, 1996 when he saw a moon only 12 hours and 7 seven minutes long. For more details, read Jim Stamm's account of the event. Deepest crater on the moon is 8.85 km, 2.25 km above upper surface |