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Solar eclipse of January 4, 2011

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Solar eclipse of January 4, 2011
Partial from Poland
Map
Type of eclipse
NaturePartial
Gamma1.0627
Magnitude0.8576
Maximum eclipse
Coordinates64°42′N 20°48′E / 64.7°N 20.8°E / 64.7; 20.8
Times (UTC)
(P1) Partial begin6:40:11
Greatest eclipse8:51:42
(P4) Partial end11:00:52
References
Saros151 (14 of 72)
Catalog # (SE5000)9531

The solar eclipse of January 4, 2011 was a partial eclipse of the Sun that was visible after sunrise over most of Europe, northwestern and South Asia. It ended at sunset over eastern Asia. It was visible as a minor partial eclipse over northern Africa and the Arabian peninsula.

Greatest eclipse occurred at 08:51 UTC in northern Sweden where the eclipse in the horizon had a magnitude of 0.858. At that time, the axis of the Moon's shadow passed a mere 510 km above Earth's surface.[1]

A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth. This was the first of four partial solar eclipses in 2011, with the others occurring on June 1, 2011, July 1, 2011, and November 25, 2011.

It also proceeds the two total lunar eclipses occurring on June 15, 2011 and December 10, 2011.

Solar eclipses 2008–2011

This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[2]

The partial solar eclipses on June 1, 2011 and November 25, 2011 occur in the next lunar year eclipse set.

Solar eclipse series sets from 2008 to 2011
Ascending node   Descending node
Saros Map Gamma Saros Map Gamma
121

Partial in Christchurch, New Zealand 		February 7, 2008

Annular 		−0.95701 126

Totality in Kumul, Xinjiang, China 		August 1, 2008

Total 		0.83070
131

Annularity in Palangka Raya, Indonesia 		January 26, 2009

Annular 		−0.28197 136

Totality in Kurigram District, Bangladesh 		July 22, 2009

Total 		0.06977
141

Annularity in Jinan, Shandong, China 		January 15, 2010

Annular 		0.40016 146

Totality in Hao, French Polynesia 		July 11, 2010

Total 		−0.67877
151

Partial in Poland 		January 4, 2011

Partial 		1.06265 156 July 1, 2011

Partial 		−1.49171

Metonic series

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's ascending node.

22 eclipse events between January 5, 1935 and August 11, 2018
January 4–5 October 23–24 August 10–12 May 30–31 March 18–19
111 113 115 117 119

January 5, 1935
August 12, 1942
May 30, 1946
March 18, 1950
121 123 125 127 129

January 5, 1954
October 23, 1957
August 11, 1961
May 30, 1965
March 18, 1969
131 133 135 137 139

January 4, 1973
October 23, 1976
August 10, 1980
May 30, 1984
March 18, 1988
141 143 145 147 149

January 4, 1992
October 24, 1995
August 11, 1999
May 31, 2003
March 19, 2007
151 153 155

January 4, 2011
October 23, 2014
August 11, 2018

Notes

  1. ^ Eclipses during 2011 NASA
  2. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.

References

Wikimedia Commons has media related to Solar eclipse of 2011 January 4.
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