Ever since man's first appearance on this planet, eclipses have been regarded as both mystical and devine with some
cultures, for example, associating a lunar eclipse with the imminent arrival of death, war and/or famine. Although the
distance of the moon and sun from earth vary dramatically (400,000 vs 150,000,000 km, respectively), the apparent size
of these two heavenly bodies is such that they give the impression during an eclipse, solar or lunar, to be virtually
identical (ie. about 30 arc-minutes in angular size). A total eclipse represents the unique occurrence in space and time
where the sun, moon and earth are perfectly alligned as three collinear points on the same orbital plane. When the
collinearity is not perfect but one of these three bodies is slightly higher or lower in the plane, we have a partial
eclipse. Of course, a solar eclipse occurs when the moon lies perfectly between the sun and the earth, thus eclipsing
the solar disk. In contrast, a lunar eclipse occurs when the earth lies between the sun and moon and, thus, the moon is
hidden by the earth's shadow.
Note: The moon began its exit from the umbral shadow approximately ten minutes prior to the
rise of the full moon over Athens. The image below was taken from Philopappou Hill which lies southwest of the Acropolis
and the Parthenon. Due to my late arrival at Philopappou Hill, the moon was more than half way through its exit from the
umbra.
(First contact) |
(First contact) |
(Start of Totality) |
Totality |
(End of Totality) |
(Full) |
(End) |
|
Body: Moon Mass: 0.0123 x Earth Mean Eq Diameter: 0.2719 x Earth Distance: 397,107 km Sidereal Rev: 27d 07h 43m 11s Age: 14d 19h 29m Diameter: 30.16' Saros Cycle: 135 Magnitude:
Duration:
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Date: Dec 10, 2011 17:50:18 UT+2 Location: Philopappou Hill, Athens, Greece Equipment: Canon EOS 350D Canon EOS EF 28-105 mm @ 105mm / f11 Exposure(s): 1 x 2.5 sec ISO 200 RAW image format 3456x2304 image size Manual Mode Software: Digital Photo Prof V2.1.1.4 Photoshop CS2 Processing: RAW to TIFF (16-bit) Conv Resampling JPG Compression |