Solar eclipse of October 3, 2005


An annular solar eclipse occurred at the Moon's descending node of orbit on Monday, October 3, 2005, with a magnitude of 0.958. 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. An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring about 4.75 days after apogee, the Moon's apparent diameter was smaller.
Annularity was visible from a narrow corridor through Portugal, Spain, Algeria, Tunisia, Libya, Chad, Sudan, Ethiopia, Kenya and Somalia. A partial eclipse was seen from the much broader path of the Moon's penumbra, including most of Europe, Africa, the Middle East, and South Asia. Another solar eclipse in Africa occurred just 6 months later.

Visibility

The path of the eclipse began in the North Atlantic ocean at 08:41 universal time. The antumbra reached Madrid, Spain at 08:56 UT, lasting four minutes and eleven seconds and 90% of the Sun was covered by the Moon. The antumbra reached Algiers at 09:05 UT, then passed through Tunisia and Libya before heading southeast through Sudan, Kenya and Somalia. The shadow then moved out over the Indian Ocean until it terminated at sunset, 12:22 UT.
The maximum eclipse duration occurred in central Sudan at 10:31:42 UT, where it lasted for 4m 31s when the Sun was 71° above the horizon.
The motion of the shadow was supersonic and it generated gravity waves that were detectable as disturbances in the ionosphere. These gravity waves originate in the thermosphere at an altitude of about 180 km. Because of the obscuration of solar radiation, the ionization level dropped by 70% during the eclipse. The eclipse caused a 1–1.4 K drop in the temperature of the ionosphere.

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.
EventTime
First Penumbral External Contact2005 October 3 at 07:36:39.6 UTC
First Umbral External Contact2005 October 3 at 08:42:04.1 UTC
First Central Line2005 October 3 at 08:44:06.1 UTC
First Umbral Internal Contact2005 October 3 at 08:46:08.3 UTC
First Penumbral Internal Contact2005 October 3 at 10:00:20.1 UTC
Equatorial Conjunction2005 October 3 at 10:11:46.9 UTC
Ecliptic Conjunction2005 October 3 at 10:28:57.3 UTC
Greatest Eclipse2005 October 3 at 10:32:47.3 UTC
Greatest Duration2005 October 3 at 10:38:04.7 UTC
Last Penumbral Internal Contact2005 October 3 at 11:05:45.4 UTC
Last Umbral Internal Contact2005 October 3 at 12:19:41.4 UTC
Last Central Line2005 October 3 at 12:21:40.9 UTC
Last Umbral External Contact2005 October 3 at 12:23:40.2 UTC
Last Penumbral External Contact2005 October 3 at 13:28:57.9 UTC

ParameterValue
Eclipse Magnitude0.95759
Eclipse Obscuration0.91698
Gamma0.33058
Sun Right Ascension12h37m55.0s
Sun Declination-04°05'04.2"
Sun Semi-Diameter15'59.1"
Sun Equatorial Horizontal Parallax08.8"
Moon Right Ascension12h38m30.3s
Moon Declination-03°49'04.7"
Moon Semi-Diameter15'05.2"
Moon Equatorial Horizontal Parallax0°55'22.1"
ΔT64.8 s

Eclipse season

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months 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.
October 3
Descending node
October 17
Ascending node
Annular solar eclipse
Solar Saros 134		Partial lunar eclipse
Lunar Saros 146

Related eclipses

Eclipses in 2005

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 134

Inex

Triad