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
editRelated lunar eclipses
editEclipses in 1975
edit- 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
editLunar 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
edit- Preceded: Lunar eclipse of December 19, 1964
- Followed: Lunar eclipse of October 17, 1986
Tzolkinex
edit- Preceded: Lunar eclipse of October 6, 1968
- Followed: Lunar eclipse of December 30, 1982
Half-Saros cycle
editA 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 |
---|---|
See also
editNotes
edit- ^ Hermit Eclipse: Saros cycle 135
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
edit- 1975 Nov 18 chart Eclipse Predictions by Fred Espenak, NASA/GSFC