A total lunar eclipse took place on Tuesday, November 18, 1975, the second of two total lunar eclipses in 1975. A shallow total eclipse saw the Moon in relative darkness for 40 minutes and 11.1 seconds. The Moon was 6.421% of its diameter into the Earth's umbral shadow, and should have been significantly darkened. The partial eclipse lasted for 3 hours, 29 minutes and 2.1 seconds in total. Occurring only 4.9 days after apogee (Apogee on Friday, November 14, 1975), the Moon's apparent diameter was 4% smaller than average.[1]
| Total eclipse | |||||||||||||||||
| Date | 18 November 1975 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | −0.41343 | ||||||||||||||||
| Magnitude | 1.06421 | ||||||||||||||||
| Saros cycle | 135 (21 of 71) | ||||||||||||||||
| Totality | 40 minutes, 11.1 seconds | ||||||||||||||||
| Partiality | 209 minutes, 2.1 seconds | ||||||||||||||||
| Penumbral | 352 minutes, 13.4 seconds | ||||||||||||||||
| |||||||||||||||||
Visibility
Related lunar eclipses
Eclipses in 1975
- A partial solar eclipse on Sunday, 11 May 1975.
- A total lunar eclipse on Sunday, 25 May 1975.
- A partial solar eclipse on Monday, 3 November 1975.
- A total lunar eclipse on Tuesday, 18 November 1975.
Lunar year series
| Lunar eclipse series sets from 1973–1976 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||||
| Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma | |
| 110 | 1973 Jun 15 | Penumbral | −1.32166 | 115 | 1973 Dec 10 | Partial | 0.96441 | |
| 120 | 1974 Jun 04 | Partial | −0.54887 | 125 | 1974 Nov 29 | Total | 0.30540 | |
| 130 | 1975 May 25 | Total | 0.23674 | 135 | 1975 Nov 18 | Total | −0.41343 | |
| 140 | 1976 May 13 | Partial | 0.95860 | 145 | 1976 Nov 06 | Penumbral | −1.12760 | |
| Last set | 1973 Jul 15 | Last set | 1973 Jan 18 | |||||
| Next set | 1977 Apr 04 | Next set | 1977 Sep 27 | |||||
Tritos series
- Preceded: Lunar eclipse of December 19, 1964
- Followed: Lunar eclipse of October 17, 1986
Tzolkinex
- Preceded: Lunar eclipse of October 6, 1968
- Followed: Lunar eclipse of December 30, 1982
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 142.
| November 12, 1966 | November 22, 1984 |
|---|---|
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See also
Notes
External links
- 1975 Nov 18 chart Eclipse Predictions by Fred Espenak, NASA/GSFC