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Penumbral lunar eclipse of 2009 July 7


The beginning of the eclipse visibly in Northern America (except for
northern coast), in South America, in eastern Australia, New Zealand, Antar-
ctica, in Sargasso sea and in Pacific Ocean.
The end of the eclipse visibly in a south-western of Northern America, in
Australia, New Zealand, Antarctica, in Pacific Ocean.


Universal time of geocentric opposition
h m s
in right ascension 2009, July 7, 9 00 35.9

Sun Moon
h m s h m s
Right ascension . . . . . . . . . . . . . 7 06 47.640 19 06 47.640
s s
Hourly motion . . . . . . . . . . . . . +10.252 +126.956
я€ ' " я€ ' "
Declination. . . . . . . . . . . . . . . . +22 33 05.54 -23 55 27.02
" "
Hourly motion . . . . . . . . . . . . . -16.34 +359.18
" ' "
Equatorial horizontal parallax . . . . . . 8.65 53 59.38
' " ' "
Apparent semidiameter . . . . . . . . . . 15 43.92 14 42.72


Circumstances of the Eclipse
Position Angles
of the Moon's axis
h m я€
Moon enters penumbra . . . . . . . July 7, 8 33.3 355.03
Greatest eclipse . . . . . . . . . 9 38.6 354.81
Moon leaves penumbra . . . . . . . 10 44.2 354.59

--------------------------------------------
Contacts| Position |The Moon being in the Zenith in
of Penumbra| Angles -----------------------
with Limb| from the | |
of Moon |North Point| Latitude | Longitude
---------|-----------|----------|-----------
| я€ ' | я€ ' | я€ '
First | 8 13.7 | -24 06.8 | 127 18.3 W
Last | 327 13.5 | -23 53.5 | 158 59.2 W

Magnitude of the eclipse 0.180
"
Angular radius of the penumbra 4275.37
"
Angular radius of the umbra 2350.29


-------------------------------------------------------------------------------
| | | |Magnitudes of! | | | |Magnitudes of
T | s | d | P | Penumbral ! T | s | d | P | Penumbral
| | | | Eclipse ! | | | | Eclipse
-----|-----|------|------|-------------!-----|-----|------|------|-------------
h m| "| | o | ! h m| "| | o |
8 30| 5181| 2.204| 9.2| - ! 9 50| 4842| 2.060| 344.0| 0.175
40| 5089| 2.165| 6.3| 0.034 ! | | | |
50| 5010| 2.131| 3.3| 0.079 !10 00| 4867| 2.071| 340.8| 0.160
| | | | ! 10| 4907| 2.088| 337.6| 0.138
9 00| 4945| 2.104| 0.2| 0.116 ! 20| 4961| 2.111| 334.5| 0.107
10| 4894| 2.082| 357.0| 0.144 ! 30| 5030| 2.140| 331.4| 0.068
20| 4858| 2.067| 353.8| 0.165 ! 40| 5113| 2.176| 328.4| 0.022
30| 4837| 2.058| 350.6| 0.177 ! 50| 5208| 2.216| 325.6| -
40| 4832| 2.056| 347.3| 0.180 ! | | | |

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.