Umbra.

Partial solar eclipse of 2 May 2087

A partial solar eclipse takes place on 2 May 2087. 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, 80% of the Sun's diameter is covered, seen from 70.4°N 127.9°E.

The numbers

Type
Partial solar eclipse
Date
2 May 2087
Greatest eclipse
18:01:50 UTC
Eclipse magnitude
0.802
Gamma
1.1135
Greatest eclipse at
70.4°N 127.9°E

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

All times are UTC. Contact times are computed for each city from the Besselian elements against the WGS84 ellipsoid, at sea level and without refraction.

Contact times and maximum obscuration
PlaceC1C2 MaxC3C4 CentralObscuredSun alt.
LongyearbyenSvalbard and Jan Mayen 17:52:55 18:41:50 19:29:47 54.0% 10°
MurmanskRussia 18:03:43 18:48:50 19:33:19 50.8%
AnchorageUnited States 16:42:15 17:32:50 18:25:29 44.6% 25°
OsloNorway 18:28:28 19:07:50 19:46:17 27.2%
BergenNorway 18:29:44 19:09:10 19:47:20 25.2%

C1 and C4 are first and last contact, when the Moon's disc touches the Sun's. C2 and C3 bracket the central phase. 77 of the 2,250 cities in the database see at least a 3% partial eclipse.

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.