- Start
- Apr 20, 204275% CONFIDENCEfrom the source
Total Solar Eclipse Crosses Malaysia
- A total solar eclipse on 2042 Apr 20, catalogued by NASA/GSFC as sequence 09601, relative number -5, of Saros series 139[1][2][3]
- Greatest Eclipse falls at 02:16:04.0 UT at 26°56.9'N 137°18.8'E, with the Sun 72.7° up, a path 210.4 km wide and a central duration of 04m51.0s[1]
- Greatest Duration comes minutes later at 02:19:54 UT at 27°59'N 138°27'E, path width 209.7 km, central duration 04m51.2s, the figure the Google-map page also gives[1][2]
- The umbral shadow is tabulated at 120-second intervals across 99 timed rows from 00:38 UT to 03:54 UT, the central line running from 08°54.2'S 082°15.7'E at the opening limits to 42°29.7'N 138°09.7'W at the closing limits[1]
- At the path’s ends totality is far shorter — 02m18.6s over a 158 km path at the start and 02m16.7s over 156 km at the end — against 04m51.0s at greatest eclipse[1]
- The Saros 139 catalog gives the same instant in Terrestrial Dynamical Time as 2042 Apr 20 02:17:30 TD with ΔT = 86 s, gamma 0.2956, magnitude 1.0614, path width 210 km and central duration 04m51s — rounded against the path page’s 210.4 km[1][3]
- Totality can only be seen between the blue northern and southern path limits and is longest on the red central line; yellow lines mark maximum eclipse at 10-minute intervals[2]
- Predictions use the VSOP87/ELP2000-85 solar and lunar ephemerides with ΔT = 85.6 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’[1][2]
- Saros 139 runs 1262.11 years over 71 solar eclipses, 43 of them total and none annular, and will peak at 07m29s on 2186 Jul 16; this eclipse follows 2024 Apr 08 (04m28s) and precedes 2060 Apr 30 (05m15s) as its durations lengthen[3]
- All calculations are by Fred Espenak, NASA’s GSFC, who ‘assumes full responsibility for their accuracy’[1][2][3]
References 382% CONFIDENCE
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]75%eclipse.gsfc.nasa.gov/SEpath/SEpath2001/SE2042Apr20Tpath.htmleclipse.gsfc.nasa.gov· Posted Sep 20, 2026· Starts Apr 20, 2042 ✓· 33% of score
NASA's[2][3] eclipse catalogue gives the instant of greatest eclipse as 02:16:04 UT on 2042-04-20 (02:17:30 TD, the two separated by delta-T), from Saros series 139. Eclipse circumstances are computed from orbital mechanics, so the date and time are exact centuries ahead.
- [2]90%Total Solar Eclipse of 2042-04-20 - Google map of the patheclipse.gsfc.nasa.gov· Added Sep 20, 2026· 33% of score
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 139eclipse.gsfc.nasa.gov· Added Sep 20, 2026· 33% of score
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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