Solar eclipse of January 26, 2009

An annular solar eclipse occurred at the Moon's ascending node of the orbit on Monday, January 26, 2009.[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. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. It had a magnitude of 0.9282 and was visible from a narrow corridor beginning in the south Atlantic Ocean and sweeping eastward 900 km south of Africa, slowly curving northeast through the Indian Ocean. Its first landfall was in the Cocos Islands followed by southern Sumatra and western Java. It continued somewhat more easterly across central Borneo, across the northwestern edge of Celebes, then ending just before Mindanao, Philippines. The duration of annularity at greatest eclipse lasted 7 minutes, 53.58 seconds, but at greatest duration lasted 7 minutes, 56.05 seconds.

Solar eclipse of January 26, 2009
Annularity from Palangka Raya, Indonesia
Map
Type of eclipse
NatureAnnular
Gamma−0.282
Magnitude0.9282
Maximum eclipse
Duration474 sec (7 m 54 s)
Coordinates34.1°S 70.2°E / -34.1; 70.2
Max. width of band280 km (170 mi)
Times (UTC)
Greatest eclipse7:59:45
References
Saros131 (50 of 70)
Catalog # (SE5000)9527

Occurring only 3.3 days after apogee (January 23, 2009), the Moon's apparent diameter was smaller.

Visibility


Animated path

Images


Progression from Colombo, Sri Lanka

Eclipses of 2009

Tzolkinex

Half-Saros

Tritos

Solar Saros 131

Inex

Triad

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.[3]

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.

Saros 131

It is a part of Saros cycle 131, repeating every 18 years, 11 days, containing 70 events. The series started with partial solar eclipse on August 1, 1125. It contains total eclipses from March 27, 1522 through May 30, 1612 and hybrid eclipses from June 10, 1630 through July 24, 1702, and annular eclipses from August 4, 1720 through June 18, 2243. The series ends at member 70 as a partial eclipse on September 2, 2369. The longest duration of totality was only 58 seconds on May 30, 1612. All eclipses in this series occurs at the Moon’s ascending node.

Series members 33–70 occur between 1702 and 2369
33 34 35

July 24, 1702
August 4, 1720
August 15, 1738
36 37 38

August 25, 1756
September 6, 1774
September 16, 1792
39 40 41

September 28, 1810
October 9, 1828
October 20, 1846
42 43 44

October 30, 1864
November 10, 1882
November 22, 1900
45 46 47

December 3, 1918
December 13, 1936
December 25, 1954
48 49 50

January 4, 1973
January 15, 1991
January 26, 2009
51 52 53

February 6, 2027
February 16, 2045
February 28, 2063
54 55 56

March 10, 2081
March 21, 2099
April 2, 2117
57 58 59

April 13, 2135
April 23, 2153
May 5, 2171
60 61 62

May 15, 2189
May 27, 2207
June 6, 2225
63 64 65

June 18, 2243
June 28, 2261
July 9, 2279
66 67 68

July 20, 2297
August 1, 2315
August 11, 2333
69 70

August 22, 2351
September 2, 2369

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.

21 eclipse events between June 21, 1982, and June 21, 2058
June 21 April 8–9 January 26 November 13–14 September 1–2
107 109 111 113 115
June 21, 1963 April 9, 1967 January 26, 1971 November 14, 1974 September 2, 1978
117 119 121 123 125

June 21, 1982
April 9, 1986
January 26, 1990
November 13, 1993
September 2, 1997
127 129 131 133 135

June 21, 2001
April 8, 2005
January 26, 2009
November 13, 2012
September 1, 2016
137 139 141 143 145

June 21, 2020
April 8, 2024
January 26, 2028
November 14, 2031
September 2, 2035
147 149 151 153 155

June 21, 2039
April 9, 2043
January 26, 2047
November 14, 2050
September 2, 2054
157

June 21, 2058

Notes
  1. "Indonesians witness solar eclipse today". The Herald. January 26, 2009. p. 19. Retrieved October 25, 2023 – via Newspapers.com.
  2. "Indonesians among the few to witness solar eclipse". Whitehorse Daily Star. January 26, 2009. p. 16. Retrieved October 25, 2023 – via Newspapers.com.
  3. van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved October 6, 2018.

References

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