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Annular Solar Eclipse Crosses the South Indian Ocean · Chronopin

天文投稿 2026/09/202026/09/20 17:30·@ScienceDesk タイムラインへ

Annular Solar Eclipse Crosses the South Indian Ocean

開始 2043/10/03 3:00

Point of greatest eclipse at sea, off the South Indian Ocean

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Annular
Saros 154
Solar eclipse

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NASA's^[1][2][3] eclipse catalogue gives the instant of greatest eclipse as 03:00:21 UT on 2043-10-03 (03:01:48 TD, the two separated by delta-T), from Saros series 154. Eclipse circumstances are computed from orbital mechanics, so the date and time are exact centuries ahead. This eclipse is non-central and has no published path table, so its place is the catalogue position, good to the whole degree.

開始: 2043年10月3日確度 75%出典：出典

Annular Solar Eclipse Crosses the South Indian Ocean

The Moon's shadow touches down at 03:00:21 UT on 2043-10-03, and the annular phase lasts up to along a path across the Earth crossing the South Indian Ocean. A partial eclipse is visible from Antarctica, southwestern Australia and the Indian Ocean.

An annular solar eclipse on 2043 Oct 03, catalogued by NASA/GSFC as sequence 09604, relative number -27, of Saros series 154^[1][2][3]
It is a non-central eclipse: the path page is headed ‘Non-Central Eclipse’ and every central-line, diameter-ratio, Sun altitude and azimuth, path-width and duration column in its table is filled with ‘-’, so the source gives this eclipse no central-line duration or path width at all^[1]
The Saros 154 catalog agrees, typing it ‘A-’ with gamma -1.0102, magnitude 0.9497 and blank path-width and central-duration columns, at 2043 Oct 03 03:01:49 TD with ΔT = 88 s^[3]
The links disagree on duration: the Google-map page states ‘In this case, the Greatest Duration is 07m45.4s’, a figure neither the path table nor the Saros catalog supports for a non-central eclipse with no central line^[1][2][3]
What the path table does give are the northern and southern limits at 120-second intervals from 02:52 to 03:08 UT, opening at limits 56°07.5'S 038°56.5'E and closing at limits 65°48.1'S 031°07.4'E — the antumbra only grazing high southern latitudes^[1]
Predictions use the VSOP87/ELP2000-85 solar and lunar ephemerides with ΔT = 86.7 seconds, and exclude the lunar limb profile, whose corrections ‘may shift the limits of the eclipse path north or south by ~1-3 kilometers, and change the eclipse duration by ~1-3 seconds’; fuller predictions are normally posted 12-18 months beforehand^[1][2]
Saros 154 is a young series, begun with a partial on 1917 Jul 19 and running 1262.11 years over 71 solar eclipses to a partial on 3179 Aug 25; this eclipse is its first umbral one, following the partial of 2025 Sep 21 and preceding the annular of 2061 Oct 13, which at 03m41s is the series’ longest annular^[3]
All calculations are by Fred Espenak, NASA’s GSFC, who ‘assumes full responsibility for their accuracy’^[1][2][3]

0

参考資料 3確度 82%

最初の項目は常にピンの出典です。全体の確度は、各資料が上記の開始・終了時刻をどれだけ強く裏付けているかの加重平均です。最新の資料より180日古くなるごとに、重みは半分になります。

[1]75%
eclipse.gsfc.nasa.gov/SEpath/SEpath2001/SE2043Oct03Apath.html
eclipse.gsfc.nasa.gov· 投稿 2026年9月20日· 開始 2043年10月3日 ✓· スコアの 33%
NASA's^[2][3] eclipse catalogue gives the instant of greatest eclipse as 03:00:21 UT on 2043-10-03 (03:01:48 TD, the two separated by delta-T), from Saros series 154. Eclipse circumstances are computed from orbital mechanics, so the date and time are exact centuries ahead. This eclipse is non-central and has no published path table, so its place is the catalogue position, good to the whole degree.
[2]90%
Annular Solar Eclipse of 2043-10-03 - Google map of the path
eclipse.gsfc.nasa.gov· 追加 2026年9月20日· スコアの 33%
NASA's^[1][3] interactive map of this eclipse, showing the central path, the points of greatest eclipse and greatest duration, and local circumstances anywhere on the map.
[3]80%
Saros series 154
eclipse.gsfc.nasa.gov· 追加 2026年9月20日· スコアの 33%
The saros series this eclipse belongs to, listing every eclipse in the same 18-year family and where each one fell.^[1]

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