A penumbra refers to a partially shaded outer region of a shadow that an object casts. A penumbral eclipse occurs when the moon passes through the faint penumbral portion of the earth’s shadow.
The lunar surface is not completely shadowed by the earth’s umbra (darkest part of a shadow). Instead, observers can see only the slightest dimming near the lunar limb closest to the umbra. The eclipse may be undetectable unless at least half of the moon enters the penumbra.
The last lunar eclipse of 2012 is a deep eclipse with a magnitude of 0.9155. It should be easily visible to the naked eye as dusky shading in the northern half of the Moon. People in Alaska, Hawaii, New Zealand, Australia, and Most of Asia can see the eclipse!
Key times for the lunar eclipse:
Penumbral eclipse starts –12:14:58 UT
Greatest eclipse – 14:33:00 UT
Penumbral eclipse ends - 16:51:02 UT
Please Share This Opportunity So that Everyone Can Enjoy It. :)
