October_1968_lunar_eclipse Knowpia

Total lunar eclipse October 6, 1968
(No photo)
The moon passes west to east (right to left) across the Earth's umbral shadow, shown in hourly intervals.
Series	136 (17 of 72)
Gamma	0.36054
Magnitude	1.16913
Duration (hr:mn:sc)
Totality	01h02m58.1s
Partial	03h33m57.9s
Penumbral	05h52m07.1s
Contacts (UTC)
P1	08:45:55.0
U1	09:54:55.4
U2	11:10:25.7
Greatest	11:41:56.0
U3	12:13:23.8
U4	13:28:53.3
P4	14:38:02.1

A total lunar eclipse took place on Sunday, October 6, 1968, the second of two total eclipses in 1968, the first was on April 13, 1968. The tables below contain detailed predictions and additional information on the total lunar eclipse of October 6, 1968.

Eclipse characteristics
Parameter	Value
Penumbral magnitude	2.22423
Umbral magnitude	1.16913
Gamma	0.36054
Epilson	0.3345º

Opposition times
Event	Calendar date & time	Julian date
Greatest eclipse	1968 Oct 06 at 11:42:35.0 TD (11:41:56.0 UT1)	2440135.987453
Ecliptic opposition	1968 Oct 06 at 11:46:44.1 TD (11:46:05.2 UT1)	2440135.990337
Equatorial opposition	1968 Oct 06 at 12:05:11.4 TD (12:04:32.4 UT1)	2440136.003153

Geocentric coordinates of Sun and Moon
1968 Oct 06 at 11:42:35.0 TD (11:41:56.0 UT1)
Coordinate	Sun	Moon
Right ascension	12h48m51.9s	00h48m13.3s
Declination	-05°14'36.0"	+05°32'13.0"
Semi-diameter	16'00.2"	15'10.1"
Eq. hor. parallax	08.8"	0°55'39.9"

Geocentric libration of Moon
Angle	Value
l	4.6°
b	-0.4°
c	-21.4°

Earth's shadows
Parameter	Value
Penumbral radius	1.2062°
Umbral radius	0.6728°

Prediction parameters
Parameter	Value
Ephemerides	JPL DE406
ΔT	39.0 s
Shadow rule	Danjon
Shadow enlargement	1.010
Saros series	136 (17/72)

Visibility edit

It was completely visible over Asia, Australia, and North America, seen rising over central Asia, and setting over central North America.

Related lunar eclipses edit

Lunar year series edit

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

Half-Saros cycle edit

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).^[1] This lunar eclipse is related to two total solar eclipses of Solar Saros 143.