Solar eclipse of 2009 July 22
Encyclopedia
A total solar eclipse
Solar eclipse
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and the Earth, and the Moon fully or partially blocks the Sun as viewed from a location on Earth. This can happen only during a new moon, when the Sun and the Moon are in conjunction as seen from Earth. At least...

 occurred on July 22, 2009. It was the longest total solar eclipse during the 21st century, not to be surpassed until 13 June 2132
Solar Eclipse of June 13, 2132
A total solar eclipse will occur on June 13, 2132. - Duration :It will be the longest solar eclipse since the solar eclipse of July 22, 2009, lasting a maximum of 6 minutes, 55 seconds.- References :* * *...

. It lasted a maximum of 6 minutes and 39 seconds off the coast of Southeast Asia, causing tourist interest in eastern China
East China
East China is a geographical and a loosely-defined cultural region that covers the eastern coastal area of China.Although an intangible and loosely defined concept, for administrative and governmental purposes, the region is defined by the government of the People's Republic of China to include...

, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

, India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

, Nepal
Nepal
Nepal , officially the Federal Democratic Republic of Nepal, is a landlocked sovereign state located in South Asia. It is located in the Himalayas and bordered to the north by the People's Republic of China, and to the south, east, and west by the Republic of India...

 and Bangladesh
Bangladesh
Bangladesh , officially the People's Republic of Bangladesh is a sovereign state located in South Asia. It is bordered by India on all sides except for a small border with Burma to the far southeast and by the Bay of Bengal to the south...

.

Visibility

A partial eclipse was seen within the broad path of the Moon's penumbra, including most of Southeast Asia
Southeast Asia
Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...

 (all of India and China) and north-eastern Oceania
Oceania
Oceania is a region centered on the islands of the tropical Pacific Ocean. Conceptions of what constitutes Oceania range from the coral atolls and volcanic islands of the South Pacific to the entire insular region between Asia and the Americas, including Australasia and the Malay Archipelago...

.

The total eclipse was visible from a narrow corridor through northern Maldives
Maldives
The Maldives , , officially Republic of Maldives , also referred to as the Maldive Islands, is an island nation in the Indian Ocean formed by a double chain of twenty-six atolls oriented north-south off India's Lakshadweep islands, between Minicoy Island and...

, northern Pakistan
Pakistan
Pakistan , officially the Islamic Republic of Pakistan is a sovereign state in South Asia. It has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. In the north, Tajikistan...

, northern India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

, eastern Nepal
Nepal
Nepal , officially the Federal Democratic Republic of Nepal, is a landlocked sovereign state located in South Asia. It is located in the Himalayas and bordered to the north by the People's Republic of China, and to the south, east, and west by the Republic of India...

, northern Bangladesh
Bangladesh
Bangladesh , officially the People's Republic of Bangladesh is a sovereign state located in South Asia. It is bordered by India on all sides except for a small border with Burma to the far southeast and by the Bay of Bengal to the south...

, Bhutan
Bhutan
Bhutan , officially the Kingdom of Bhutan, is a landlocked state in South Asia, located at the eastern end of the Himalayas and bordered to the south, east and west by the Republic of India and to the north by the People's Republic of China...

, northern Philippines
Philippines
The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

, the northern tip of Myanmar
Myanmar
Burma , officially the Republic of the Union of Myanmar , is a country in Southeast Asia. Burma is bordered by China on the northeast, Laos on the east, Thailand on the southeast, Bangladesh on the west, India on the northwest, the Bay of Bengal to the southwest, and the Andaman Sea on the south....

, central China and the Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

, including the Ryukyu Islands
Ryukyu Islands
The , also known as the , is a chain of islands in the western Pacific, on the eastern limit of the East China Sea and to the southwest of the island of Kyushu in Japan. From about 1829 until the mid 20th century, they were alternately called Luchu, Loochoo, or Lewchew, akin to the Mandarin...

, Marshall Islands
Marshall Islands
The Republic of the Marshall Islands , , is a Micronesian nation of atolls and islands in the middle of the Pacific Ocean, just west of the International Date Line and just north of the Equator. As of July 2011 the population was 67,182...

 and Kiribati
Kiribati
Kiribati , officially the Republic of Kiribati, is an island nation located in the central tropical Pacific Ocean. The permanent population exceeds just over 100,000 , and is composed of 32 atolls and one raised coral island, dispersed over 3.5 million square kilometres, straddling the...

.

Totality was visible in many large cities, including Surat
Surat
Surat , also known as Suryapur, is the commercial capital city of the Indian state of Gujarat. Surat is India's Eighth most populous city and Ninth-most populous urban agglomeration. It is also administrative capital of Surat district and one of the fastest growing cities in India. The city proper...

, Vadodara
Vadodara
Vadodara formerly known as Baroda is the third most populated city in the Indian State of Gujarat . It is one of the four cities with the population of over 1 million...

, Bhopal, Varanasi
Varanasi
-Etymology:The name Varanasi has its origin possibly from the names of the two rivers Varuna and Assi, for the old city lies in the north shores of the Ganga bounded by its two tributaries, the Varuna and the Asi, with the Ganges being to its south...

, Patna
Patna
Paṭnā , is the capital of the Indian state of Bihar and the second largest city in Eastern India . Patna is one of the oldest continuously inhabited places in the world...

, Gaya
Gaya, India
Gaya is the second largest city of Bihar, India, and it is also the headquarters of Gaya District.Gaya is 100 kilometers south of Patna, the capital city of Bihar. Situated on the banks of Falgu River , it is a place sanctified by both the Hindu and the Buddhist religions...

, Dinajpur
Dinajpur District, Bangladesh
Dinajpur is a district in Northern Bangladesh. It is a part of the Rangpur Division.- Geography :Dinajpur is bounded by Thakurgaon and Panchagarh districts in the north, Gaibandha and Joypurhat districts in the south, Nilphamari and Rangpurdistricts in the east, and the state of West Bengal, India...

, Siliguri
Siliguri
Siliguri is a city in the Indian state of West Bengal. It is located in the Siliguri Corridor or Chicken's Neck - a very narrow strip of land linking mainland India to its north-eastern states. It is also the transit point for air, road and rail traffic to the neighbouring countries of Nepal,...

, Guwahati
Guwahati
Guwahati, Pragjyotishpura in ancient Assam formerly known as Gauhati is a metropolis,the largest city of Assam in India and ancient urban area in North East India, with a population of 963,429. It is also the largest metropolitan area in north-eastern India...

, Tawang
Tawang Town
Tawang is a small town situated at an elevation of approximately 3,048 meters in the northwestern part of Arunachal Pradesh state of India. The area is historically Tibetan territory and is claimed by both People's Republic of China and Republic of China as a part of South Tibet...

 in India and Chengdu
Chengdu
Chengdu , formerly transliterated Chengtu, is the capital of Sichuan province in Southwest China. It holds sub-provincial administrative status...

, Nanchong
Nanchong
Nanchong is a prefecture-level city in the northeast of Sichuan Province of the People's Republic of China, with an area of 12,479 kilometers. and the home to 7,300,000 people. It has the second most populated area and suggested to be one of the eight largest cities of Sichuan Province...

, Chongqing
Chongqing
Chongqing is a major city in Southwest China and one of the five national central cities of China. Administratively, it is one of the PRC's four direct-controlled municipalities , and the only such municipality in inland China.The municipality was created on 14 March 1997, succeeding the...

, Yichang
Yichang
Yichang is a prefecture-level city located in Hubei province of the People's Republic of China. It is the second largest city in Hubei province after the province capital, Wuhan. The Three Gorges Dam is located within its administrative area, in Yiling District.-History:In ancient times Yichang...

, Jingzhou
Jingzhou
Jingzhou is a prefecture-level city in Hubei Province, People's Republic of China. The city is located on the banks of the Yangtze River.Its population is 5,691,707 at the 2010 census whom 1,154,086 in the built up area made of 3 urban districts.-Geography:Jingzhou occupies an area of...

, Wuhan
Wuhan
Wuhan is the capital of Hubei province, People's Republic of China, and is the most populous city in Central China. It lies at the east of the Jianghan Plain, and the intersection of the middle reaches of the Yangtze and Han rivers...

, Huanggang
Huanggang, Hubei
Huanggang City is a major municipality in eastern Hubei Province, China. It is situated to the north of the middle reaches of the Yangtze River and is bounded in the north by the Dabie Shan mountain range....

, Hefei
Hefei
Hefei is the capital and largest city of Anhui Province in Eastern China. A prefecture-level city, it is the political, economic, and cultural centre of Anhui...

, Hangzhou
Hangzhou
Hangzhou , formerly transliterated as Hangchow, is the capital and largest city of Zhejiang Province in Eastern China. Governed as a sub-provincial city, and as of 2010, its entire administrative division or prefecture had a registered population of 8.7 million people...

, Wuxi
Wuxi
Wuxi is an old city in Jiangsu province, People's Republic of China. Split in half by Lake Tai, Wuxi borders Changzhou to the west and Suzhou to the east. The northern half looks across to Taizhou across the Yangtze River, while the southern half also borders the province of Zhejiang to the south...

, Huzhou
Huzhou
Huzhou is a prefecture-level city in northern Zhejiang province of Eastern China. Lying south of the Lake Tai, it borders Jiaxing to the east, Hangzhou to the south, and the provinces of Anhui and Jiangsu to the west and north respectively.-Administration:...

, Suzhou
Suzhou
Suzhou , previously transliterated as Su-chou, Suchow, and Soochow, is a major city located in the southeast of Jiangsu Province in Eastern China, located adjacent to Shanghai Municipality. The city is situated on the lower reaches of the Yangtze River and on the shores of Taihu Lake and is a part...

, Jiaxing
Jiaxing
Jiaxing is a prefecture-level city in northern Zhejiang province of Eastern China. Lying on the Grand Canal of China, Jiaxing borders Hangzhou to the southwest, Huzhou to the west, Shanghai to the northeast, and the province of Jiangsu to the north....

, Ningbo
Ningbo
Ningbo is a seaport city of northeastern Zhejiang province, Eastern China. Holding sub-provincial administrative status, the municipality has a population of 7,605,700 inhabitants at the 2010 census whom 3,089,180 in the built up area made of 6 urban districts. It lies south of the Hangzhou Bay,...

, Shanghai
Shanghai
Shanghai is the largest city by population in China and the largest city proper in the world. It is one of the four province-level municipalities in the People's Republic of China, with a total population of over 23 million as of 2010...

, Chapai Nawabganj as well as over the Three Gorges Dam
Three Gorges Dam
The Three Gorges Dam is a hydroelectric dam that spans the Yangtze River by the town of Sandouping, located in the Yiling District of Yichang, in Hubei province, China...

 in China. However, in Shanghai, the largest city in the eclipse's path, the view was obscured by heavy clouds. According to NASA, the Japanese island Kitaio Jima was predicted to have the best viewing conditions featuring both longer viewing time (being the closest point of land to the point of greatest eclipse) and lower cloud cover statistics than all of continental Asia.

Observations

Thousands of pilgrims gathered on the banks of the Ganges River in Varanasi, India
Varanasi
-Etymology:The name Varanasi has its origin possibly from the names of the two rivers Varuna and Assi, for the old city lies in the north shores of the Ganga bounded by its two tributaries, the Varuna and the Asi, with the Ganges being to its south...

 to experience the eclipse as a religious or spiritual event. Some people expected that there would be a relationship, either positive or negative, between their health and the occurrence of the eclipse.

Indian scientists observed the solar eclipse from an Indian Air Force
Indian Air Force
The Indian Air Force is the air arm of the Indian armed forces. Its primary responsibility is to secure Indian airspace and to conduct aerial warfare during a conflict...

 plane.

The Chinese government
Government of the People's Republic of China
All power within the government of the People's Republic of China is divided among three bodies: the People's Republic of China, State Council, and the People's Liberation Army . This article is concerned with the formal structure of the state, its departments and their responsibilities...

 used the opportunity to provide scientific education and to dispel any superstition.
Observers in Japan were excited by the prospect of experiencing the first eclipse in 46 years, but found the experience dampened by cloudy skies obscuring the view.

Thousands of people of Bangladesh
Bangladesh
Bangladesh , officially the People's Republic of Bangladesh is a sovereign state located in South Asia. It is bordered by India on all sides except for a small border with Burma to the far southeast and by the Bay of Bengal to the south...

 witnessed the longest total solar eclipses of the 21st century on Wednesday, 22 July, 2009 defying rain and a heavily overcast sky. Before this a "total solar eclipse observation committee" was formed with Bishwa Sahitya Kendra, Liberation War Museum, Chhayanaut's educational initiative Nalanda, Samannito Shikkha-Sangskriti, Bangladesh Nature Study and Conservation Union, and Cosmic Culture to observe the eclipse. Science initiative Discussion Project coordinated the committee, which set up the main observation camp at Madhupara village and another at the South Plaza of Jatiya Sangsad Bhaban in Dhaka. With the help of BRB Cable Industries Ltd, the committee also set up observation camps at Bell's Park in Barisal, Akimuddin Gronthagar in Chapai Nawabganj, science and technology university campuses in Syedpur and Gazipur, Jahangirnagar University and Araj Ali Matubbar library at Dania in Dhaka. Akimudin Gronthagar arranged three camps to observe century's one and only solar eclipse of July 22, 2009. 99.56% totality was observed from main camp at Kamat Maath, Binodpur, Chapai Nawabganj. Totality started at 07:57:41BDT and end 3 minutes 44 seconds later. The other two camps were set up at Poddar Paar in Rajshahi
Rajshahi
The city of Rajshahi is the divisional headquarters of Rajshahi division as well as the administrative district that bears its name and is one of the six metropolitan cities of Bangladesh. Often referred to as Silk City and Education City, Rajshahi is located in the north-west of the country and...

 and at railway's Dhar in Uttar, Dhaka.

Duration

This solar eclipse was the longest total solar eclipse to occur in the 21st century, and will not be surpassed in duration until 13 June 2132
Solar Eclipse of June 13, 2132
A total solar eclipse will occur on June 13, 2132. - Duration :It will be the longest solar eclipse since the solar eclipse of July 22, 2009, lasting a maximum of 6 minutes, 55 seconds.- References :* * *...

. Totality lasted for up to 6 minutes and 39 seconds, with the maximum eclipse occurring in the ocean at 02:35:21 UTC about 100 km south of the Bonin Islands, southeast of Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

. The uninhabited North Iwo Jima
North Iwo Jima
North Iwo Jima is the northernmost island of the Volcano Islands group of the Ogasawara Islands, 80 km north of Iwo Jima. It is 1170 km south of Tokyo, 207 km SSW of Chichijima.-Geography :...

 island was the landmass with totality time closest to maximum, while the closest inhabited point was Akusekijima
Akusekijima
is a volcanic island located in the Tokara Islands in part of the Nansei Islands, Japan. Most of the island is surrounded by steep cliffs. Access to the island is limited to the "Ferry Toshima", which only runs twice a week and takes 11 hours from Kagoshima....

, where the eclipse lasted 6 minutes and 26 seconds.

The cruise ship Costa Classica
Costa Classica
Costa Classica is a cruise ship for Costa Cruises. She was built by Fincantieri Shipyards. In 2001 and 2005, she underwent major refurbishments. On board are two restaurants, 9 bars, 2 swimming pools, and 4 whirlpools.-MSC Poesia collision :...

 was chartered specifically to view this eclipse and by viewing the eclipse at the point of maximum duration and cruising along the centerline during the event, duration was extended to 6 minutes, 42 seconds.

The eclipse was part of Saros series
Saros cycle
The saros is a period of 223 synodic months , that can be used to predict eclipses of the Sun and Moon. One saros after an eclipse, the Sun, Earth, and Moon return to approximately the same relative geometry, and a nearly identical eclipse will occur, in what is referred to as an eclipse cycle...

 136, as was the solar eclipse of July 11, 1991
Solar eclipse of July 11, 1991
A total solar eclipse occurred on July 11, 1991. Totality beginning over the Pacific Ocean and Hawaii moving across Mexico, down through Central America and across South America ending over Brazil. It lasted for 6 minutes and 53 seconds at the point of maximum eclipse...

, which was slightly longer, lasting up to 6 minutes 53 seconds (previous eclipses of the same saros series on June 30, 1973 and June 20, 1955, were longer, lasting 7 min 04 and 7 min 08, respectively). The next event from this series will be on August 2, 2027. The exceptional duration was a result of the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...

 being near perigee
Perigee
Perigee is the point at which an object makes its closest approach to the Earth.. Often the term is used in a broader sense to define the point in an orbit where the orbiting body is closest to the body it orbits. The opposite is the apogee, the farthest or highest point.The Greek prefix "peri"...

, with the apparent diameter of the Moon 8% larger than the Sun
Sun
The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields...

 (magnitude
Magnitude of eclipse
The magnitude of eclipse or geometric magnitude is the fraction of the diameter of the eclipsed body which is in eclipse. This applies to both solar eclipses and lunar eclipses. During a partial or annular eclipse the magnitude of the eclipse is always between 0.0 and 1.0, while during a total...

 1.080) and the Earth being near aphelion where the Sun appeared slightly smaller.

In contrast the annular solar eclipse of January 26, 2009
Solar eclipse of January 26, 2009
An annular solar eclipse occurred on January 26, 2009. It had a magnitude of 0.92 and was visible from a narrow corridor beginning in the south Atlantic Ocean and sweep eastward 900 km south of Africa, slowly curving northeast through the Indian Ocean. Its first landfall was in the Cocos...

 occurred near lunar apogee and 7% smaller apparent diameter to the sun. And the next solar eclipse of January 15, 2010
Solar eclipse of January 15, 2010
The solar eclipse of January 15, 2010 was an annular eclipse of the Sun with a magnitude of 0.9190. It was the longest annular solar eclipse of the millennium, and the longest until December 23, 3043, with a maximum length of 11 minutes, 7.8 seconds. This is about 4 minutes longer than total solar...

 was also annular, with the Moon 8.1% smaller than the Sun.

View from space

The Terrain Mapping Camera in the Chandrayaan-1 lunar mission was used to image the earth during the eclipse.

It was also observed by the Japanese geostationary satellite MTSAT:

12:30 UT (pre-eclipse)

1:30 UT

Close up at 1:30 UT

Related eclipses

This total eclipse the second in the series of three eclipses in a one-month period, with two minor penumbral lunar eclipses, first on July 7
July 2009 lunar eclipse
A penumbral lunar eclipse took place on July 7, 2009, the second of four lunar eclipses in 2009. This eclipse entered only the southernmost tip of the penumbral shadow and thus was predicted to be very difficult to observe visually.- Visibility :...

 and last on August 6
August 2009 lunar eclipse
A penumbral lunar eclipse took place on August 6, 2009, the third of four lunar eclipses in 2009. The moon's small entry into the Earth's penumbral shadow will produce an extremely subtle dimming of the moon's southern edge, difficult to observe visually....

.
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