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E c l i p s e s, 2001
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V. Penumbral Lunar Eclipse of 2001 December 30


The beginning of the eclipse visible in north-eastern Asia, North and Cen-
tral America, Greenland, South America except the Atlantic coast, New Zealand,
the northern Atlantic Ocean, the Arctic Ocean, and the Pacific Ocean.
The end of the eclipse visible in northern Europe, Asia except the south-
west, northern Greenland, North America except the Atlantic coast,New Zealand,
Australia, the Arctic Ocean, the Pacific Ocean except the south-east, the
north-eastern Indian Ocean.


Universal time of geocentric opposition
h m s
in right ascension 2001, December 30, 10 32 50.3

Sun Moon
h m s h m s
Right ascension . . . . . . . . . . . . . 18 38 16.957 6 38 16.957
s s
Hourly motion . . . . . . . . . . . . . +11.055 +155.834
o ' " o ' "
Declination. . . . . . . . . . . . . . . .-23 08 50.08 +24 12 21.71
" "
Hourly motion . . . . . . . . . . . . . +10.12 +51.09
" ' "
Equatorial horizontal parallax . . . . . . 8.94 59 10.32
' " ' "
Apparent semidiameter . . . . . . . . . . 16 15.91 16 07.44


Circumstances of the Eclipse
Position Angles
of the Moon's axis
h m o
Moon enters penumbra . . . . . . . . December 30, 8 25.4 4.75
Greatest eclipse . . . . . . . . . 10 29.4 5.27
Moon leaves penumbra . . . . . . . . 12 33.2 5.79


---------------------------------------------------------
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 | 130 40.7 | +24 18.8 | 127 00.4 W
Last | 225 49.0 | +24 22.4 | 173 33.7 E


Magnitude of the eclipse 0.916
"
Angular radius of the penumbra 4625.50
"
Angular radius of the umbra 2634.97


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| | | | Magnitudes I | | | | Magnitudes
T | s | d | P |of penumbral I T | s | d | P |of penumbral
| | | | eclipse I | | | | eclipse
-----|-----|------|------|-------------I-----|-----|------|------|------------
h m| "| | o | I h m| "| | o |
8 20| 5716| 2.172| 129.4| - I10 40| 3826| 1.452| 183.6| 0.908
30| 5475| 2.080| 131.8| 0.057 I 50| 3871| 1.469| 188.5| 0.885
40| 5243| 1.992| 134.3| 0.177 I | | | |
50| 5023| 1.908| 137.1| 0.291 I11 00| 3943| 1.496| 193.3| 0.848
| | | | I 10| 4040| 1.533| 197.8| 0.798
9 00| 4814| 1.829| 140.1| 0.398 I 20| 4162| 1.579| 202.2| 0.736
10| 4620| 1.755| 143.4| 0.498 I 30| 4306| 1.633| 206.2| 0.662
20| 4442| 1.687| 147.0| 0.590 I 40| 4469| 1.695| 210.0| 0.578
30| 4282| 1.626| 150.8| 0.673 I 50| 4650| 1.764| 213.6| 0.485
40| 4142| 1.573| 154.9| 0.745 I | | | |
50| 4024| 1.528| 159.3| 0.806 I12 00| 4847| 1.838| 216.8| 0.383
| | | | I 10| 5058| 1.918| 219.8| 0.275
10 00| 3930| 1.492| 163.9| 0.854 I 20| 5282| 2.002| 222.5| 0.160
10| 3862| 1.466| 168.7| 0.889 I 30| 5516| 2.091| 225.1| 0.039
20| 3822| 1.451| 173.6| 0.910 I 40| 5759| 2.183| 227.4| -
30| 3810| 1.446| 178.6| 0.916 I | | | |


T - universal time ( TDT - UT1 = 66.0 s );
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.