LUNAR ECLIPSE
January 20, 2000 Visible from all of US
by Stephen D. Last
LAST 's ECLIPSE SUBSTITUTION METHOD
Time of Mid-Eclipse: ..................8:44 PST, 4:44UT Jan 21
Duration of Totality.....................1Hour 17 Min
Moon enters umbra......................7:05 PST
Start of Totality...........................8:05PST
Mid-Eclipse: ...............................8:44PST
End of Totality............................9:22PST
Moon leaves umbra.....................10:25PST
Distance of Earth from Sun..............................91,469,000+1000Miles(A)
Distance of Moon from Earth...........................224,150 Miles(B)
Length of Earth's Shadow
(A)/108.29831 (Last Constant).........................844,602.28 Miles(C)
Length of Earth's shadow past Moon(C-B)......................................................620,452 Miles (D)
Diameter of Earth's Shadow @ Moon's Distance
(D/C x 7920 Earth's Diameter)........................5818.1 Miles(E)
Length of Earth's Shadow Cord from start to end of Totality
ingress 4 O'clock,egress 8 O'clock..................2948.304 Miles(F)
Speed of Moon's Shadow in Orbit..................2,294 MPH (G)
Speed of Moon's Shadow in Orbit..................38.24MPM (H)
Duration Of Totality (F/H)...............................77.1 Minutes
Permission is freely granted to reproduce for non-commercial use any of my material. Uses of this material MUST be accompanied by appropriate acknowledgement: e.g.. "Last's Word on the Stars" or Last Constant.
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