October 1966 lunar eclipse - Misplaced Pages

Penumbral lunar eclipse October 29, 1966

October 1966 lunar eclipse

Penumbral eclipse

The Moon's hourly motion shown right to left

Date

October 29, 1966

Gamma

−1.0600

Magnitude

−0.1249

Saros cycle

116 (55 of 73)

Penumbral

273 minutes, 41 seconds

Contacts (UTC)
P1	7:55:27
Greatest	10:12:16
P4	12:29:08

← May 1966 April 1967 →

A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, October 29, 1966, with an umbral magnitude of −0.1249. 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 4 days after apogee (on October 25, 1966, at 9:55 UTC), the Moon's apparent diameter was smaller.

Visibility

The eclipse was completely visible over northeast Asia, much of North America, and the Pacific Ocean, seen rising over east and southeast Asia and Australia and setting over eastern North America and South America.

Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.

October 29, 1966 Lunar Eclipse Parameters
Parameter	Value
Penumbral Magnitude	0.95172
Umbral Magnitude	−0.12488
Gamma	−1.05999
Sun Right Ascension	14h12m57.7s
Sun Declination	-13°22'20.9"
Sun Semi-Diameter	16'06.2"
Sun Equatorial Horizontal Parallax	08.9"
Moon Right Ascension	02h14m38.8s
Moon Declination	+12°29'37.7"
Moon Semi-Diameter	14'57.5"
Moon Equatorial Horizontal Parallax	0°54'53.8"
ΔT	37.2 s

Eclipse season

Related eclipses

Lunar eclipses of 1966–1969

Lunar eclipse series sets from 1966–1969
Descending node				Ascending node
Saros	Date Viewing	Type Chart	Gamma	Saros	Date Viewing	Type Chart	Gamma
111	1966 May 4	Penumbral	1.05536	116	1966 Oct 29	Penumbral	−1.05999
121	1967 Apr 24	Total	0.29722	126	1967 Oct 18	Total	−0.36529
131	1968 Apr 13	Total	−0.41732	136	1968 Oct 6	Total	0.36054
141	1969 Apr 2	Penumbral	−1.17648	146	1969 Sep 25	Penumbral	1.06558

Last set	1965 Jun 14			Last set	1965 Dec 8

Next set	1970 Feb 21			Next set	1969 Aug 27

Metonic series

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.

Metonic events: May 4 and October 28
Descending node	Ascending node
1966 May 4 - Penumbral (111) 1985 May 4 - Total (121) 2004 May 4 - Total (131) 2023 May 5 - Penumbral (141)	1966 Oct 29 - Penumbral (116) 1985 Oct 28 - Total (126) 2004 Oct 28 - Total (136) 2023 Oct 28 - Partial (146) 2042 Oct 28 - Penumbral (156)

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two solar eclipses of Solar Saros 123.