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.