References 483% CONFIDENCEOverall confidence: 83%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better

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/SE2031May21Apath.html

  eclipse.gsfc.nasa.gov· Posted Sep 20, 2026· Starts May 21, 2031 ✓· 25% of score

  NASA's^[2][3][4] eclipse catalogue gives the instant of greatest eclipse as 07:14:46 UT on 2031-05-21 (07:16:04 TD, the two separated by delta-T), from Saros series 138. Eclipse circumstances are computed from orbital mechanics, so the date and time are exact centuries ahead.

• [2]85%
  Solar Eclipses: 2031 - 2040

  eclipse.gsfc.nasa.gov· Added Sep 20, 2026· 25% of score

  NASA’s^[1][3][4] decade table, the only one of these pages that names places: its row for 2031 May 21 gives "[Annular: Angola, Congo, Zambia, Tanzania, s. India, Malaysia, Indonesia]" and the region of visibility as "Africa, s Asia, E. Indies, Australia".

• [3]90%
  Annular Solar Eclipse of 2031-05-21 - Google map of the path

  eclipse.gsfc.nasa.gov· Added Sep 20, 2026· 25% of score

  NASA's^[1][2][4] interactive map of this eclipse, showing the central path, the points of greatest eclipse and greatest duration, and local circumstances anywhere on the map.

• [4]80%
  Saros series 138

  eclipse.gsfc.nasa.gov· Added Sep 20, 2026· 25% 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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