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'Supermoon' tomorrow 19/3/11


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Just noticed how bright the moon is tonight and it will be brighter tomorrow night when it becomes a 'supermoon'. The press have been saying it could cause extreme weather conditions, but i think we've already had plenty of that!:suspect:

 

Trousers down again then, it could be cold but what the heck.:banana:

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The Moon's orbit is not circular; it varies between about 221,000 miles and about 249,000 miles away. At its nearest, a full moon appears roughly thirty per cent larger, and thus thirty per cent brighter, than at its farthest. This is not a big enough difference to be noticeable to the casual observer unless he is told about it; variations in visibility due to atmospheric conditions have a much larger effect.

 

The difference in tidal effects on the Earth, because of the variation in distance, is negligible. Tidal effects depend not on the total gravitational pull of the Moon, but on the difference between the pull on opposite sides of the Earth, nearest the Moon or furthest away. That difference remains about the same, so the tidal effects remain about the same. They are totally irrelevant to earthquakes or other natural phenomena here on Earth.

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