A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Wednesday, December 8, 1965,[1] with an umbral magnitude of −0.1200. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's penumbra. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. Occurring about 2.5 days before perigee (on December 11, 1965, at 6:00 UTC), the Moon's apparent diameter was larger.[2]
| Penumbral eclipse | |||||||||
 The Moon's hourly motion shown right to left | |||||||||
| Date | December 8, 1965 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | 1.0775 | ||||||||
| Magnitude | −0.1200 | ||||||||
| Saros cycle | 144 (13 of 71) | ||||||||
| Penumbral | 240 minutes, 40 seconds | ||||||||
| |||||||||
Visibility
editThe eclipse was completely visible over eastern Europe, northeast Africa, Asia, [[and Australia, seen rising over western Europe and much of Africa and setting over northwestern North America and the central Pacific Ocean.[3]
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Eclipse details
editShown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 0.88203 |
| Umbral Magnitude | −0.12004 |
| Gamma | 1.07748 |
| Sun Right Ascension | 17h00m58.1s |
| Sun Declination | -22°45'04.3" |
| Sun Semi-Diameter | 16'14.4" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 05h00m02.9s |
| Moon Declination | +23°47'53.1" |
| Moon Semi-Diameter | 16'12.3" |
| Moon Equatorial Horizontal Parallax | 0°59'28.5" |
| ΔT | 36.5 s |
Eclipse season
editThis eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight.
| November 23 Descending node (new moon) |
December 8 Ascending node (full moon) |
|---|---|
 |
|
| Annular solar eclipse Solar Saros 132 |
Penumbral lunar eclipse Lunar Saros 144 |
Related eclipses
editEclipses in 1965
edit- A total solar eclipse on May 30.
- A partial lunar eclipse on June 14.
- An annular solar eclipse on November 23.
- A penumbral lunar eclipse on December 8.
Metonic
edit- Preceded by: Lunar eclipse of February 19, 1962
- Followed by: Lunar eclipse of September 25, 1969
Tzolkinex
edit- Preceded by: Lunar eclipse of October 27, 1958
- Followed by: Lunar eclipse of January 18, 1973
Half-Saros
edit- Preceded by: Solar eclipse of December 2, 1956
- Followed by: Solar eclipse of December 13, 1974
Tritos
edit- Preceded by: Lunar eclipse of January 8, 1955
- Followed by: Lunar eclipse of November 6, 1976
Lunar Saros 144
edit- Preceded by: Lunar eclipse of November 28, 1947
- Followed by: Lunar eclipse of December 20, 1983
Inex
edit- Preceded by: Lunar eclipse of December 28, 1936
- Followed by: Lunar eclipse of November 18, 1994
Triad
edit- Preceded by: Lunar eclipse of February 7, 1879
- Followed by: Lunar eclipse of October 8, 2052
Lunar eclipses of 1962–1965
edit| Lunar eclipse series sets from 1962–1965 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date Viewing |
Type Chart |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
| 109 | 1962 Jul 17
|
Penumbral
|
1.33712 | 114 | 1963 Jan 09
|
Penumbral
|
-1.01282 | |
| 119 | 1963 Jul 06
|
Partial
|
0.61972 | 124 | 1963 Dec 30
|
Total
|
-0.28889 | |
| 129 | 1964 Jun 25
|
Total
|
-0.14611 | 134 | 1964 Dec 19
|
Total
|
0.38008 | |
| 139 | 1965 Jun 14
|
Partial
|
-0.90055 | 144 | 1965 Dec 08
|
Penumbral
|
1.07748 | |
| Last set | 1962 Aug 15 | Last set | 1962 Feb 19 | |||||
| Next set | 1966 May 04 | Next set | 1966 Oct 29 | |||||
Saros 144
editLunar Saros series 144, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 20 total lunar eclipses.
First Penumbral Lunar Eclipse: 1749 Jul 29
First Partial Lunar Eclipse: 2146 Mar 28
First Total Lunar Eclipse: 2308 Jul 04
First Central Lunar Eclipse: 2362 Aug 06
Greatest Eclipse of the Lunar Saros 144: 2416 Sep 07
Last Central Lunar Eclipse: 2488 Oct 20
Last Total Lunar Eclipse: 2651 Jan 28
Last Partial Lunar Eclipse: 2867 Jun 08
Last Penumbral Lunar Eclipse: 3011 Sep 04
Half-Saros cycle
editA lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[5] This lunar eclipse is related to two partial solar eclipses of Solar Saros 151.
| December 2, 1956 | December 13, 1974 |
|---|---|
|
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See also
editNotes
edit- ^ "December 8–9, 1965 Penumbral Lunar Eclipse". timeanddate. Retrieved 31 December 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 31 December 2024.
- ^ "Penumbral Lunar Eclipse of 1965 Dec 08" (PDF). NASA. Retrieved 31 December 2024.
- ^ "Penumbral Lunar Eclipse of 1965 Dec 08". EclipseWise.com. Retrieved 31 December 2024.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
edit- 1965 Dec 08 chart Eclipse Predictions by Fred Espenak, NASA/GSFC