Umbra.

Partial solar eclipse of 20 May 2069

A partial solar eclipse takes place on 20 May 2069. The Moon covers part of the Sun's disc but never all of it, because the shadow axis passes beside the Earth rather than across it. At greatest eclipse, 9% of the Sun's diameter is covered, seen from 69.0°S 69.8°W.

The numbers

Type
Partial solar eclipse
Date
20 May 2069
Greatest eclipse
17:51:05 UTC
Eclipse magnitude
0.087
Gamma
1.4855
Greatest eclipse at
69.0°S 69.8°W

See it in 3D

The simulator places the Sun, Earth and Moon at their true relative positions for this date and draws the shadow cones at real scale. You can scrub through the eclipse, drop an observer anywhere, and watch the umbra sweep the surface.

Loads about 300 KB on demand — nothing is downloaded until you press it.

Local circumstances

This eclipse misses every city in the database — the track falls over ocean or polar regions. Use the 3D simulator to place an observer anywhere on Earth and read off the contact times for that point.

How these figures were produced

Positions come from astronomy-engine, a VSOP87/ELP implementation. From the geocentric Sun and Moon vectors the site computes Besselian elements — x, y, d, μ, l1, l2, tan f1 and tan f2 — and solves the observer's position on the fundamental plane against the WGS84 ellipsoid. Central durations agree with NASA's Five Millennium Canon to within about half a second. Full method and validation.