วันพฤหัสบดีที่ 16 มิถุนายน พ.ศ. 2554

Eclipses During 2011

Four partial solar and two total lunar eclipses take place in 2011. This 4:2 combination of solar and lunar eclipses in a single year is rather rare with only six cases during the 21st Century (2011, 2029, 2047, 2065, 2076 and 2094). The first and last eclipses always occur in January and December.

The dates and types of eclipses during 2011 are as follows.
2011 Jan 04: Partial Solar Eclipse
2011 Jun 01: Partial Solar Eclipse
2011 Jun 15: Total Lunar Eclipse
2011 Jul 01: Partial Solar Eclipse
2011 Nov 25: Partial Solar Eclipse
2011 Dec 10: Total Lunar Eclipse

Predictions for the eclipses are summarized in Figures 1, 2, 3, 4, 5, and 6. World maps show the regions of visibility for each eclipse. The lunar eclipse diagrams also include the path of the Moon through Earth's shadows. Contact times for each principal phase are tabulated along with the magnitudes and geocentric coordinates of the Sun and Moon at greatest eclipse.

All times and dates used in this publication are in Universal Time or UT. This astronomically derived time system is colloquially referred to as Greenwich Mean Time or GMT. To learn more about UT and how to convert UT to your own local time, see
from: http://eclipse.gsfc.nasa.gov/OH/OH2011.html

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