Umbra.

Annular solar eclipse of 6 February 2027

A annular solar eclipse crosses the Earth on 6 February 2027. Along a track 270 km wide the Moon sits centred on the Sun but is too small to cover it, leaving a ring of sunlight for up to 7 min 51 s. The central line runs across Argentina. From Mar del Plata the central phase runs 7 min 38 s, with the Sun 66° above the horizon.

The numbers

Type
Annular solar eclipse
Date
6 February 2027
Greatest eclipse
15:59:32 UTC
Eclipse magnitude
0.928
Gamma
0.2950
Central duration
7 min 51 s
Path width
270 km at greatest eclipse
Greatest eclipse at
31.3°S 48.5°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

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, longest central phase first
PlaceC1C2 MaxC3C4 CentralObscuredSun alt.
Mar del PlataArgentina 13:45:14 15:24:14 15:28:12 15:31:52 17:09:59 7 min 38 s 86.0% 66°
LagosNigeria 16:43:59 17:49:41 17:52:32 17:55:18 18:53:34 5 min 37 s 83.7%
AccraGhana 16:41:49 17:49:36 17:52:12 17:55:07 18:54:53 5 min 31 s 83.8%
Ebute IkoroduNigeria 16:44:09 17:49:49 17:52:32 17:55:20 18:53:37 5 min 31 s 83.6%
CotonouBenin 16:43:36 17:49:53 17:52:32 17:55:21 18:54:04 5 min 27 s 83.7%
Abomey-CalaviBenin 16:43:40 17:50:02 17:52:32 17:55:22 18:54:09 5 min 20 s 83.7%
LoméTogo 16:42:58 17:49:59 17:52:32 17:55:18 18:54:33 5 min 20 s 83.8%
AbeokutaNigeria 16:44:39 17:50:49 17:52:52 17:55:15 18:54:02 4 min 26 s 83.6% -0°
MontevideoUruguay 13:50:22 15:36:12 17:19:00 85.6% 70°
Campos dos GoytacazesBrazil 14:47:39 16:35:32 18:09:27 85.4% 66°
Vila VelhaBrazil 14:53:33 16:40:52 18:13:31 84.9% 64°
PelotasBrazil 14:02:14 15:50:32 17:32:23 84.8% 74°
VitóriaBrazil 14:53:27 16:40:52 18:13:29 84.8% 65°
SerraBrazil 14:54:00 16:41:12 18:13:55 84.5% 64°

C1 and C4 are first and last contact, when the Moon's disc touches the Sun's. C2 and C3 bracket the central phase. 309 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.