An annular solar eclipse occurred at the Moon's descending node of orbit on Sunday, September 11, 1988, with a magnitude of 0.9377. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring only 12.5 hours after apogee (on September 10, 1988, at 16:10 UTC), the Moon's apparent diameter was smaller.

Annularity was visible in southeastern Somalia (including the capital city Mogadishu), the Indian Ocean and Macquarie Island of Australia. A partial eclipse was visible for parts of East Africa, the Middle East, South Asia, Southeast Asia, Australia, and New Zealand.

Eclipse timing Places experiencing annular eclipse Solar Eclipse of September 11, 1988(Local Times)Country or territory City or placeStart of partial eclipseStart of annular eclipseMaximum eclipseEnd of annular eclipseEnd of partial eclipseDuration of annularity (min:s)Duration of eclipse (hr:min)Maximum coverage Mogadishu 05:51:19 (sunrise) 05:55:52 05:57:34 05:59:14 07:12:01 3:22 1:21 85.69%References:

Places experiencing partial eclipse Solar Eclipse of September 11, 1988(Local Times)Country or territory City or placeStart of partial eclipseMaximum eclipseEnd of partial eclipseDuration of eclipse (hr:min)Maximum coverage Aden 05:49:01 (sunrise) 05:51:12 06:57:42 1:09 53.26% Sanaa 05:51:22 (sunrise) 05:53:35 06:53:25 1:02 44.25% Galkayo 05:41:25 (sunrise) 05:53:56 07:07:40 1:26 73.60% Mumbai 07:21:31 08:25:59 09:38:33 2:17 30.25% Hargeisa 05:53:58 (sunrise) 05:57:31 07:01:40 1:08 62.15% Kebri Dahar 05:54:02 (sunrise) 05:57:31 07:05:29 1:11 71.93% Degehabur 05:56:26 (sunrise) 05:58:35 07:03:08 1:07 66.01% Djibouti 05:56:57 (sunrise) 05:59:09 06:58:24 1:01 54.12% Bengaluru 07:21:12 08:35:41 10:00:55 2:40 44.09% Kismayo 06:03:15 (sunrise) 06:06:35 07:12:43 1:09 79.45% Victoria 06:12:58 (sunrise) 07:08:26 08:31:57 2:19 74.99% Thiruvananthapuram 07:21:14 08:40:40 10:12:38 2:51 57.93% Moroni 06:03:57 (sunrise) 06:12:43 07:25:05 1:21 55.49% Malé 06:51:38 08:12:47 09:47:55 2:56 74.18% Mamoudzou 05:56:25 (sunrise) 06:14:51 07:28:08 1:32 52.43% Sri Jayawardenepura Kotte 07:24:17 08:46:41 10:21:46 2:57 59.27% Pemba 05:15:20 (sunrise) 05:17:31 06:23:59 1:09 52.29% Addis Ababa 06:15:23 (sunrise) 06:17:33 06:59:47 0:44 41.84% Dar es Salaam 06:18:18 (sunrise) 06:20:31 07:17:16 0:59 59.47% Antananarivo 05:49:13 (sunrise) 06:25:45 07:37:11 1:48 38.18% Nairobi 06:26:26 (sunrise) 06:28:35 07:10:28 0:44 44.84% Diego Garcia 07:06:06 08:31:09 10:11:14 3:05 78.45% Port Louis 06:27:48 07:36:40 08:56:09 2:28 38.03% Singapore 10:42:02 12:06:33 13:35:01 2:53 27.59% Bantam 09:15:28 10:58:20 12:45:55 3:30 71.53% Jakarta 09:59:44 11:31:41 13:05:08 3:05 34.16% Perth 12:08:56 13:48:06 15:19:50 3:11 67.21% Dumont d'Urville Station 15:00:22 16:11:56 17:20:12 2:20 53.31% Oban 17:27:38 18:26:44 18:29:51 (sunset) 1:02 56.26% Melbourne 15:13:55 16:29:25 17:37:19 2:23 41.95%References:

Eclipse details Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the Moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.

+September 11, 1988 Solar Eclipse Times Event Time (UTC) First Penumbral External Contact 1988 September 11 at 01:46:36.7 UTC First Umbral External Contact 1988 September 11 at 02:56:30.0 UTC First Central Line 1988 September 11 at 02:59:28.7 UTC First Umbral Internal Contact 1988 September 11 at 03:02:28.6 UTC Greatest Duration 1988 September 11 at 04:35:51.5 UTC Greatest Eclipse 1988 September 11 at 04:44:28.7 UTC Ecliptic Conjunction 1988 September 11 at 04:50:04.6 UTC Equatorial Conjunction 1988 September 11 at 05:15:01.8 UTC Last Umbral Internal Contact 1988 September 11 at 06:26:09.7 UTC Last Central Line 1988 September 11 at 06:29:09.8 UTC Last Umbral External Contact 1988 September 11 at 06:32:08.7 UTC Last Penumbral External Contact 1988 September 11 at 07:42:08.2 UTC

+September 11, 1988 Solar Eclipse Parameters Parameter Value Eclipse Magnitude 0.93768 Eclipse Obscuration 0.87924 Gamma −0.46811 Sun Right Ascension 11h18m19.4s Sun Declination +04°29'02.7" Sun Semi-Diameter 15'53.3" Sun Equatorial Horizontal Parallax 08.7" Moon Right Ascension 11h17m30.7s Moon Declination +04°06'57.9" Moon Semi-Diameter 14'42.2" Moon Equatorial Horizontal Parallax 0°53'57.6" ΔT 56.1 s

Eclipse season

This 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.

+ Eclipse season of August–September 1988 August 27Ascending node (full moon) September 11Descending node (new moon) Partial lunar eclipseLunar Saros 118 Annular solar eclipseSolar Saros 144

Related eclipses Eclipses in 1988 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.

Metonic Preceded by: Solar eclipse of November 22, 1984 Followed by: Solar eclipse of June 30, 1992

Tzolkinex Preceded by: Solar eclipse of July 31, 1981 Followed by: Solar eclipse of October 24, 1995

Half-Saros Preceded by: Lunar eclipse of September 6, 1979 Followed by: Lunar eclipse of September 16, 1997

Tritos Preceded by: Solar eclipse of October 12, 1977 Followed by: Solar eclipse of August 11, 1999

Solar Saros 144 Preceded by: Solar eclipse of August 31, 1970 Followed by: Solar eclipse of September 22, 2006

Inex Preceded by: Solar eclipse of October 2, 1959 Followed by: Solar eclipse of August 21, 2017

Triad Preceded by: Solar eclipse of November 11, 1901 Followed by: Solar eclipse of July 13, 2075

Solar eclipses of 1986–1989

Saros 144

Metonic series

Tritos series

Inex series

Notes

References