Solar eclipse of October 12, 1977
Solar eclipse of October 12, 1977 | |
---|---|
Map | |
Type of eclipse | |
Nature | Total |
Gamma | 0.3836 |
Magnitude | 1.0269 |
Maximum eclipse | |
Duration | 157 sec (2 m 37 s) |
Coordinates | 14°06′N 123°36′W / 14.1°N 123.6°W |
Max. width of band | 99 km (62 mi) |
Times (UTC) | |
Greatest eclipse | 20:27:27 |
References | |
Saros | 143 (21 of 72) |
Catalog # (SE5000) | 9459 |
A total solar eclipse occurred on October 12, 1977. 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 total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide.
Related eclipses
Solar eclipses of 1975-1978
Each member 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.
Descending node | Ascending node | |||
---|---|---|---|---|
Saros | Map | Saros | Map | |
118 | May 11, 1975 Partial |
123 | November 3, 1975 Partial | |
128 | April 29, 1976 Annular |
133 | October 23, 1976 Total | |
138 | April 18, 1977 Annular |
143 | October 12, 1977 Total | |
148 | April 7, 1978 Partial |
153 | October 2, 1978 Partial |
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).
21 eclipse events between July 31, 1924 and July 31, 2000 | ||||
---|---|---|---|---|
July 31-Aug 1 | May 19-20 | March 7 | December 24-25 | October 12 |
115 | 117 | 119 | 121 | 123 |
July 31, 1924 |
May 19, 1928 |
March 7, 1932 |
December 25, 1935 |
October 12, 1939 |
125 | 127 | 129 | 131 | 133 |
August 1, 1943 |
May 20, 1947 |
March 7, 1951 |
December 25, 1954 |
October 12, 1958 |
135 | 137 | 139 | 141 | 143 |
July 31, 1962 |
May 20, 1966 |
March 7, 1970 |
December 24, 1973 |
October 12, 1977 |
145 | 147 | 149 | 151 | 153 |
July 31, 1981 |
May 19, 1985 |
March 7, 1989 |
December 24, 1992 |
October 12, 1996 |
155 | ||||
July 31, 2000 |
Notes
References
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
Wikimedia Commons has media related to Solar eclipse of 1977 October 12. |