Solar eclipse of April 18, 1977
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| Solar eclipse of April 18, 1977 | |
|---|---|
Map
|
|
| Type of eclipse | |
| Nature | Annular |
| Gamma | -0.399 |
| Magnitude | 0.9449 |
| Maximum eclipse | |
| Duration | 424 sec (7 m 4 s) |
| Coordinates | Lua error in package.lua at line 80: module 'strict' not found. |
| Max. width of band | 220 km (140 mi) |
| Times (UTC) | |
| Greatest eclipse | 10:31:30 |
| References | |
| Saros | 138 (29 of 70) |
| Catalog # (SE5000) | 9458 |
An annular solar eclipse occurred on April 18, 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. 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.
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.
| Ascending node | Descending 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 | 150px April 7, 1978 Partial |
153 | 150px October 2, 1978 Partial |
|
Notes
References
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
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