August 1988 lunar eclipse

August 1988 lunar eclipse
Partial eclipse
Date	27 August 1988
Gamma	−0.86816
Magnitude	0.29159
Saros cycle	118 (13 of 74)
Partiality	112 minutes, 59.7 seconds
Penumbral	262 minutes, 37.9 seconds
P1
Contacts (UTC)
P1	08:53:14.6
U1	10:08:04.1
Greatest	11:04:33.4
U4	12:01:03.8
P4	13:15:52.5
	← March 1988 February 1989 →

A partial lunar eclipse took place on Saturday, August 27, 1988, the second of two lunar eclipses in 1988, the first being on March 3, 1988. The Earth's shadow on the Moon was clearly visible in this eclipse, with 29.159% of the Moon in shadow; the partial eclipse lasted for 1 hour, 52 minutes and 59.7 seconds. The Moon was only 5 hours and 48 minutes before perigee (Perigee on Saturday, August 27, 1988 at 04:53 p.m. UTC or 16:53), making it 6.3% larger than average^[1]

Visibility[edit]

Relations to other lunar eclipses[edit]

Eclipses of 1988[edit]

A penumbral lunar eclipse on March 3.
A total solar eclipse on March 18.
A partial lunar eclipse on August 27.
An annular solar eclipse on September 11.

Saros series[edit]

This eclipse is part of Saros cycle series 118.

Lunar year series[edit]

Lunar eclipse series sets from 1988–1991
Descending node				Ascending node
Saros	Date	Type Viewing	Gamma	Saros	Date Viewing	Type Chart	Gamma
113	1988 Mar 03	Penumbral	0.98855	118	1988 Aug 27	Partial	−0.86816
123	1989 Feb 20	Total	0.29347	128	1989 Aug 17	Total	−0.14905
133	1990 Feb 09	Total	−0.41481	138	1990 Aug 06	Partial	0.63741
143	1991 Jan 30	Penumbral	−1.07522	148	1991 Jul 26	Penumbral	1.43698

Last set	1987 Apr 14			Last set	1987 Oct 07

Next set	1991 Dec 21			Next set	1991 Jun 27

Metonic cycle (19 years)[edit]

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 be in nearly the same location relative to the background stars.

1988 Mar 03.675 – Partial (113) 2007 Mar 03.972 – Total (123) 2026 Mar 03.481 – Total (133) 2045 Mar 03.320 – Penumbral (143)	1988 Aug 27.461 – partial (118) 2007 Aug 28.442 – total (128) 2026 Aug 28.175 – partial (138) 2045 Aug 27.578 – penumbral (148)

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).^[2] This lunar eclipse is related to two solar eclipses of Solar Saros 125.