LUNAR ECLIPSE

January 20, 2000 Visible from all of US

LAST'S WORD ON THE STARS

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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