Solar eclipse of July 1, 2011

A partial solar eclipse occurred on July 1, 2011.[1][2] 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 is the first solar eclipse of Saros series 156, only visible as a partial solar eclipse in a small area south of South Africa and north of Antarctica. At greatest eclipse, the magnitude was just 0.097.[3] It is the first new saros series to begin since saros 155 began with the partial solar eclipse of June 17, 1928. The eclipse belonged to Saros 156 and was number 1 of 69 eclipses in the series. Thus, the 2011 Jul 01 event was the first eclipse of the series.[4]

Solar eclipse of July 1, 2011
Map
Type of eclipse
NaturePartial
Gamma−1.4917
Magnitude0.0971
Maximum eclipse
Coordinates65.2°S 28.6°E / -65.2; 28.6
Times (UTC)
(P1) Partial begin7:53:47
Greatest eclipse8:39:30
(P4) Partial end9:22:45
References
Saros156 (1 of 69)
Catalog # (SE5000)9533

This eclipse is the third of four partial solar eclipses in 2011, with the others occurring on January 4, 2011, June 1, 2011 and November 25, 2011.

Images


Animated path

Eclipses of 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.[5]

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

Partial from Christchurch, NZ		 2008 February 07

Annular		 −0.95701 126

Novosibirsk, Russia		 2008 August 01

Total		 0.83070
131

Palangka Raya, Indonesia		 2009 January 26

Annular		 −0.28197 136

Kurigram, Bangladesh		 2009 July 22

Total		 0.06977
141

Bangui, Central African Republic		 2010 January 15

Annular		 0.40016 146

Hao, French Polynesia		 2010 July 11

Total		 −0.67877
151

Partial from Vienna, Austria		 2011 January 04

Partial (north)		 1.06265 156 2011 July 01

Partial (south)		 −1.49171

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

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 descending node.

22 eclipse events between September 12, 1931 and July 1, 2011.
September 11-12 June 30-July 1 April 17-19 February 4-5 November 22-23
114 116 118 120 122

September 12, 1931
June 30, 1935
April 19, 1939
February 4, 1943
November 23, 1946
124 126 128 130 132

September 12, 1950
June 30, 1954
April 19, 1958
February 5, 1962
November 23, 1965
134 136 138 140 142

September 11, 1969
June 30, 1973
April 18, 1977
February 4, 1981
November 22, 1984
144 146 148 150 152

September 11, 1988
June 30, 1992
April 17, 1996
February 5, 2000
November 23, 2003
154 156

September 11, 2007
July 1, 2011

References
  1. Malik, Tariq (June 30, 2011). "'Stealth' Solar Eclipse Occurs Friday". Space.com.
  2. Malik, Tariq (July 1, 2011). "'Stealth' Solar Eclipse Spotted in Satellite Photos". Space.com.
  3. "1 July 2011 Partial Solar Eclipse / Surya Grahan : Time and Visibility Map". June 30, 2011.
  4. FIVE MILLENNIUM CATALOG OF SOLAR ECLIPSES, Fred Espenak
  5. 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.
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