Solar eclipse of March 17, 1904 | |
---|---|
Type of eclipse | |
Nature | Annular |
Gamma | 0.1299 |
Magnitude | 0.9367 |
Maximum eclipse | |
Duration | 487 s (8 min 7 s) |
Coordinates | 5°36′N 94°42′E / 5.6°N 94.7°E |
Max. width of band | 237 km (147 mi) |
Times ( UTC) | |
Greatest eclipse | 5:40:44 |
References | |
Saros | 128 (52 of 73) |
Catalog # (SE5000) | 9290 |
An annular solar eclipse occurred on March 17, 1904, [1] [2] [3] [4] also known as the "1904 St. Patrick's Day eclipse".[ citation needed] 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.
The path of annularity covered southern German East Africa (now southern Tanzania), northeastern tip of Portuguese East Africa (now Mozambique), northern Grande Comore Island in French Comoros (now Comoros), southern British Seychelles (now Seychelles), British Mauritius (now Mauritius), most of the British Indian Ocean Territory (excluding the southern part of Diego Garcia), northwestern Sumatra in the Dutch East Indies (now Indonesia), southern Siam (now renamed as Thailand), French Indochina (the part now belonging to Cambodia, the southern tip of Laos and southern Vietnam, including the major city Phnom Penh, now capital of Cambodia), all of the Paracel Islands, the northern tip of the American Philippines (now Philippines) and Japanese islands of Iwo Jima, South Iwo Jima and Minamitorishima.
In addition, a partial solar eclipse was seen within a much larger area, including the eastern half of Africa, southern West Asia, southern Afghanistan, South Asia except the northernmost tip of British Raj (now the northernmost tip of Pakistan), most of China except the northwest border, Korean Peninsula, Japan, Southeast Asia, the extreme northern coast of Australia, northwestern Melanesia, central and western Micronesia, and southeastern Russian Empire.
N. Donitch of the Royal Russian Academy of Sciences (the predecessor of today's Russian Academy of Sciences) traveled to Phnom Penh (now capital of Cambodia) via Saigon (now Ho Chi Minh City, Vietnam) in French Indochina and made observations there. The weather was clear on the eclipse day, with only some fog in the morning. Donitch used a spectrometer and recorded changes in the temperature in about 2.5 hours, which dropped for about 3°C. [5]
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. [6]
Solar eclipse series sets from 1902 to 1907 | ||||
---|---|---|---|---|
Descending node | Ascending node | |||
108 |
April 8, 1902 Partial |
113 | October 1, 1902 | |
118 |
March 29, 1903 Annular |
123 |
September 21, 1903 Total | |
128 |
March 17, 1904 Annular |
133 |
September 9, 1904 Total | |
138 |
March 6, 1905 Annular |
143 |
August 30, 1905 Total | |
148 |
February 23, 1906 Partial |
153 |
August 20, 1906 Partial |
This eclipse is a member of the Solar Saros cycle 128, which includes 73 eclipses occurring in intervals of 18 years and 11 days. The series started with partial solar eclipse on August 29, 984 AD. From May 16, 1417, through June 18, 1471, the series produced total solar eclipses, followed by hybrid solar eclipses from June 28, 1489, through July 31, 1543, and annular solar eclipses from August 11, 1561, through July 25, 2120. The series ends at member 73 as a partial eclipse on November 1, 2282. All eclipses in this series occurs at the Moon's descending node.
Series members 52–68 occur between 1901 and 2200 | ||
---|---|---|
52 | 53 | 54 |
March 17, 1904 |
March 28, 1922 |
April 7, 1940 |
55 | 56 | 57 |
April 19, 1958 |
April 29, 1976 |
May 10, 1994 |
58 | 59 | 60 |
May 20, 2012 |
June 1, 2030 |
June 11, 2048 |
61 | 62 | 63 |
June 22, 2066 |
July 3, 2084 |
July 15, 2102 |
64 | 65 | 66 |
July 25, 2120 |
August 5, 2138 (Partial) | August 16, 2156 (Partial) |
67 | 68 | |
August 27, 2174 (Partial) | September 6, 2192 (Partial) |
This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.
Series members between 1801 and 2100 | |||
---|---|---|---|
December 21, 1805 (Saros 119) |
November 19, 1816 (Saros 120) |
October 20, 1827 (Saros 121) | |
September 18, 1838 (Saros 122) |
August 18, 1849 (Saros 123) |
July 18, 1860 (Saros 124) | |
June 18, 1871 (Saros 125) |
May 17, 1882 (Saros 126) |
April 16, 1893 (Saros 127) | |
March 17, 1904 (Saros 128) |
February 14, 1915 (Saros 129) |
January 14, 1926 (Saros 130) | |
December 13, 1936 (Saros 131) |
November 12, 1947 (Saros 132) |
October 12, 1958 (Saros 133) | |
September 11, 1969 (Saros 134) |
August 10, 1980 (Saros 135) |
July 11, 1991 (Saros 136) | |
June 10, 2002 (Saros 137) |
May 10, 2013 (Saros 138) |
April 8, 2024 (Saros 139) | |
March 9, 2035 (Saros 140) |
February 5, 2046 (Saros 141) |
January 5, 2057 (Saros 142) | |
December 6, 2067 (Saros 143) |
November 4, 2078 (Saros 144) |
October 4, 2089 (Saros 145) | |
September 4, 2100 (Saros 146) |
In the 22nd century:
In the 23rd century: