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
                                                ø  '  "          ø  '  "
  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        ø
     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
         ---------|-----------|----------|-----------
                  |     ø  '  |    ø  '  |    ø  '
         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.