November 1984 lunar eclipse
Contacts (UTC) | |
---|---|
P1 | 15:41:03.3 |
Greatest | 17:55:14.9 |
P4 | 20:09:30.9 |
A penumbral lunar eclipse took place on Thursday, November 8, 1984, the last of three lunar eclipses in 1984. This subtle penumbral eclipse may have been visible to a skilled observer at maximum eclipse. 90% of the Moon's disc was partially shaded by the Earth (none of it was in total shadow), which caused a gentle shadow gradient across its disc at maximum; the eclipse as a whole lasted 4 hours and 28 minutes.[1]
Visibility
Related eclipses
Eclipses of 1984
- A penumbral lunar eclipse on May 15.
- An annular solar eclipse on May 30.
- A penumbral lunar eclipse on June 13.
- A penumbral lunar eclipse on November 8.
- A total solar eclipse on November 22.
Lunar year series
Lunar eclipse series sets from 1984–1987 | ||||||||
---|---|---|---|---|---|---|---|---|
Descending node | Ascending node | |||||||
Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma | |
111 | 1984 May 15 | Penumbral | 1.11308 | 116 | 1984 Nov 08 | Penumbral | −1.08998 | |
121 | 1985 May 04 | Total | 0.35197 | 126 | 1985 Oct 28 | Total | −0.40218 | |
131 | 1986 Apr 24 | Total | −0.36826 | 136 | 1986 Oct 17 | Total | 0.31887 | |
141 | 1987 Apr 14 | Penumbral | −1.13641 | 146 | 1987 Oct 07 | Penumbral | 1.01890 | |
Last set | 1984 Jun 13 | Last set | 1983 Dec 20 | |||||
Next set | 1988 Mar 03 | Next set | 1988 Aug 27 |
Metonic series
This eclipse is the first of five Metonic cycle lunar eclipses on the same date, November 8–9, each separated by 19 years:
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 be in nearly the same location relative to the background stars.
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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 partial solar eclipses of Solar Saros 123.
November 3, 1975 | November 13, 1993 |
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See also
Notes
External links
- 1984 Nov 08 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
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by saros series
Partial eclipses
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Penumbral eclipses
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