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Penumbral lunar eclipse of 2005 April 24


The beginning of the eclipse visible in South and North America, Antarcti-
ca except the Indian coast, New Zealand, the western Atlantic Ocean, and most
of the Pacific Ocean.
The end of the eclipse visible in the Pacific coast of Asia, the Pacific
coast of North America, Antarctica except the Atlantic coast, Australia, New
Zealand, Indonesia, the Pacific Ocean, and the eastern Indian Ocean.


Universal time of geocentric opposition
h m s
in right ascension 2005, April 24, 10 51 13.3

Sun Moon
h m s h m s
Right ascension . . . . . . . . . . . . . 2 08 22.699 14 08 22.699
s s
Hourly motion . . . . . . . . . . . . . +9.407 +127.374
o ' " o ' "
Declination. . . . . . . . . . . . . . . .+12 58 23.11 -14 08 01.09
" "
Hourly motion . . . . . . . . . . . . . +49.21 -858.08
" ' "
Equatorial horizontal parallax . . . . . . 8.74 57 53.14
' " ' "
Apparent semidiameter . . . . . . . . . . 15 54.07 15 46.42


Circumstances of the Eclipse
Position Angles
of the Moon's axis
h m o
Moon enters penumbra . . . . . . . April 24, 7 49.7 18.53
Greatest eclipse . . . . . . . . . 9 54.9 18.30
Moon leaves penumbra . . . . . . . 11 59.7 18.06

--------------------------------------------
Contacts| Position |The Moon being in the Zenith in
of Penumbra| Angles |-------------------------------
with Limb| from the | |
of Moon |North Point| Latitude | Longitude
---------|-----------|--------------|----------------
| o ' | o ' | o '
First | 71 52.4 | -13 29.7 | 119 22.1 W
Last | 338 51.6 | -14 29.9 | 179 49.6 W

Magnitude of the eclipse 0.889
"
Angular radius of the penumbra 4522.98
"
Angular radius of the umbra 2576.96

-------------------------------------------------------------------------------
| | | |Magnitudes of! | | | |Magnitudes of
T | s | d | P | Penumbral ! T | s | d | P | Penumbral
| | | | Eclipse ! | | | | Eclipse
-----|-----|------|------|-------------!-----|-----|------|------|-------------
h m| "| | o | ! h m| "| | o |
7 40| 5688| 2.210| 74.0| - !10 00| 3782| 1.468| 22.9| 0.886
50| 5457| 2.120| 71.8| 0.004 ! 10| 3809| 1.478| 18.1| 0.872
| | | | ! 20| 3862| 1.498| 13.4| 0.844
8 00| 5234| 2.033| 69.4| 0.122 ! 30| 3939| 1.528| 8.9| 0.803
10| 5021| 1.950| 66.8| 0.234 ! 40| 4040| 1.567| 4.6| 0.750
20| 4819| 1.872| 63.9| 0.341 ! 50| 4162| 1.614| 0.5| 0.686
30| 4630| 1.798| 60.8| 0.441 ! | | | |
40| 4455| 1.730| 57.5| 0.533 !11 00| 4304| 1.669| 356.6| 0.611
50| 4296| 1.668| 53.9| 0.617 ! 10| 4464| 1.731| 353.0| 0.526
| | | | ! 20| 4640| 1.799| 349.7| 0.434
9 00| 4156| 1.613| 50.1| 0.691 ! 30| 4830| 1.873| 346.6| 0.333
10| 4035| 1.566| 46.0| 0.755 ! 40| 5033| 1.951| 343.8| 0.226
20| 3935| 1.528| 41.6| 0.807 ! 50| 5248| 2.034| 341.2| 0.114
30| 3859| 1.498| 37.1| 0.847 ! | | | |
40| 3808| 1.478| 32.4| 0.874 !12 00| 5472| 2.121| 338.8| -
50| 3782| 1.468| 27.7| 0.887 ! | | | |

s
T - universal time ( TDT - UT1 = 66.0 );
s - the angular distance between the centers of the Moon and the shadow;
d - the linear distance between the Moon's center and that of the shadow
in terms of the shadow's radius;
P - the position angle of the Moon's disk semi-diameter directed towards
the shadow's center.