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Stages of the May 15-16, 2003 Lunar Eclipse
By Joe Rao
Special to SPACE.com
posted: 07:00 am ET
09 May 2003
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STAGE 2
Penumbral shadow begins
to appear
Now the Moon has progressed
far enough into the penumbra so that it should be evident on the Moon's disk.
Start looking for a very subtle shading to appear on the Moon's left portion.
This will become more and more evident as the minutes pass, the shading appearing
to spread and deepen.
Just before the Moon begins
to enter the Earth's dark umbral shadow, the penumbra should appear as an obvious
smudge or tarnishing of the Moon's left portion.
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