July 1981 lunar eclipse
A partial lunar eclipse took place on July 17, 1981, the second of two lunar eclipses in 1981. The Earth's shadow on the moon was clearly visible in this eclipse, with 55% of the Moon in shadow; the partial eclipse lasted for 2 hours and 43 minutes.[1]
| Partial eclipse | |||||||||||||
| Date | 17 July 1981 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | 0.70454 | ||||||||||||
| Magnitude | 0.54860 | ||||||||||||
| Saros cycle | 119 (60 of 83) | ||||||||||||
| Penumbral | 319 minutes, 43 seconds | ||||||||||||
| |||||||||||||
Visibility
The partial phase of this lunar eclipse was visible in southeastern North America, South America, western Africa, seen rising over northern North America, and setting over Western Europe and Eastern Africa.
Related lunar eclipses
Lunar year series
| Lunar eclipse series sets from 1980–1984 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date Viewing |
Type Chart |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
| 109 | 1980 Jul 27 |
Penumbral |
1.41391 | 114 | 1981 Jan 20 |
Penumbral |
-1.01421 | |
| 119 | 1981 Jul 17 |
Partial |
0.70454 | 124 | 1982 Jan 09 |
Total |
-0.29158 | |
| 129 | 1982 Jul 06 |
Total |
-0.05792 | 134 | 1982 Dec 30 |
Total |
0.37579 | |
| 139 | 1983 Jun 25 |
Partial |
-0.81520 | 144 | 1983 Dec 20 |
Penumbral |
1.07468 | |
| 149 | 1984 Jun 13 |
Penumbral |
-1.52403 | |||||
| Last set | 1980 Aug 26 | Last set | 1980 Mar 13 | |||||
| Next set | 1984 May 26 | Next set | 1984 Nov 20 | |||||
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[2] This lunar eclipse is related to two total solar eclipses of Solar Saros 126.
| July 10, 1972 | July 22, 1990 |
|---|---|
 |
 |
See also
- List of lunar eclipses
- List of 20th-century lunar eclipses
Notes
- Hermit Eclipse: Saros cycle 119
- Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
- 1981 Jul 17 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.