Solar eclipse of October 3, 2005

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Template:Short description Template:Infobox solar eclipse An annular solar eclipse occurred at the Moon's descending node of orbit on Monday, October 3, 2005,[1][2][3] 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 (ring). 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 (on September 28, 2005, at 16:20 UTC), the Moon's apparent diameter was smaller.[4]

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 (UT). 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.[5]

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.[5]

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.[6][7] The eclipse caused a 1–1.4 K drop in the temperature of the ionosphere.[8]

Images

Animated path

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.[9]

October 3, 2005 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 2005 October 3 at 07:36:39.6 UTC
First Umbral External Contact 2005 October 3 at 08:42:04.1 UTC
First Central Line 2005 October 3 at 08:44:06.1 UTC
First Umbral Internal Contact 2005 October 3 at 08:46:08.3 UTC
First Penumbral Internal Contact 2005 October 3 at 10:00:20.1 UTC
Equatorial Conjunction 2005 October 3 at 10:11:46.9 UTC
Ecliptic Conjunction 2005 October 3 at 10:28:57.3 UTC
Greatest Eclipse 2005 October 3 at 10:32:47.3 UTC
Greatest Duration 2005 October 3 at 10:38:04.7 UTC
Last Penumbral Internal Contact 2005 October 3 at 11:05:45.4 UTC
Last Umbral Internal Contact 2005 October 3 at 12:19:41.4 UTC
Last Central Line 2005 October 3 at 12:21:40.9 UTC
Last Umbral External Contact 2005 October 3 at 12:23:40.2 UTC
Last Penumbral External Contact 2005 October 3 at 13:28:57.9 UTC
October 3, 2005 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 0.95759
Eclipse Obscuration 0.91698
Gamma 0.33058
Sun Right Ascension 12h37m55.0s
Sun Declination -04°05'04.2"
Sun Semi-Diameter 15'59.1"
Sun Equatorial Horizontal Parallax 08.8"
Moon Right Ascension 12h38m30.3s
Moon Declination -03°49'04.7"
Moon Semi-Diameter 15'05.2"
Moon Equatorial Horizontal Parallax 0°55'22.1"
ΔT 64.8 s

Eclipse season

Script error: No such module "Labelled list hatnote". 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 October 2005
October 3
Descending node (new moon)
 October 17
Ascending node (full moon)
File:SE2005Oct03A.png File:Lunar eclipse chart close-2005Oct17.png
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

Solar eclipses of 2004–2007

Template:Solar eclipse set 2004–2007

Saros 134

Template:Solar Saros series 134

Metonic series

Template:Solar Metonic series 1971–2047

Tritos series

Template:Solar Tritos series 2005 October 3

Inex series

Template:Solar Inex series 2005 October 3

Notes

Template:Reflist

References

Template:Solar eclipse NASA reference

Photos:

Template:Solar eclipses Template:Sister project

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