February 1951 lunar eclipse
| Penumbral eclipse | |||||||||
| File:Lunar eclipse chart close-1951Feb21.png The Moon passed west to east (right to left) through the northern edge of the Earth's penumbral shadow. It was too small to be visually perceptible. | |||||||||
| Magnitude | 0.007 (penumbral magnitude) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Saros cycle | 103 (83) | ||||||||
| |||||||||
A penumbral lunar eclipse took place on Wednesday, February 21, 1951. This was 6.4 days after the Moon reached apogee.[1]
Grazing penumbral eclipse
The magnitude of the eclipse was 0.007 or a miss depending on definitions of the penumbral shadow is defined. Bao-Lin Lui's Canon of lunar eclipses list it as the last eclipse of a saros cycle, with magnitude 0.007, while NASA lists February 10, 1933, as the final series event, with this one missing the shadow.[2] As seen from the lunar south pole the sun missing the sphere of the earth, excluding the atmosphere.
Related lunar eclipses
Lunar year series
Metonic cycle (19 years)
This is the third of five Metonic lunar eclipses. The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the Earth's shadow will in nearly the same location relative to the background stars.
| Descending node | Ascending node | |||||
|---|---|---|---|---|---|---|
| Saros | Date | Type | Saros | Date | Type | |
| 103 | 1951 Feb 21.88 | Penumbral | 108 | 1951 Aug 17.13 | Penumbral | |
| File:Lunar eclipse chart-1951Feb21.png | File:Lunar eclipse chart-1951Aug17.png | |||||
| 113 | 1970 Feb 21.35 | Partial | 118 | 1970 Aug 17.14 | Partial | |
| File:Lunar eclipse chart-1970Feb21.png | File:Lunar eclipse chart-1970Aug17.png | |||||
| 123 | 1989 Feb 20.64 | Total | 128 | 1989 Aug 17.13 | Total | |
| File:Lunar eclipse chart-1989Feb20.png | File:Lunar eclipse chart-1989Aug17.png | |||||
| 133 | 2008 Feb 21.14 | Total | 138 | 2008 Aug 16.88 | Partial | |
| File:Lunar eclipse chart-2008Feb21.png | File:Lunar eclipse chart-08aug16.png | |||||
| 143 | 2027 Feb 20.96 | Penumbral | 148 | 2027 Aug 17.30 | Penumbral | |
| File:Lunar eclipse chart-2027Feb20.png | File:Lunar eclipse chart-2027Aug17.png | |||||
See also
- List of lunar eclipses
- List of 20th-century lunar eclipses
- August 2016 lunar eclipse
- October 2042 lunar eclipse
Notes
References
- Bao-Lin Lui, Alan D. Fiala, Canon of lunar eclipses 1500BC-3000AD, 1992, p. 157, no. 8397, magnitude 0.007.
External links
- NASA chart
- 1951 Feb 21 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
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