An annular eclipse of the Sun occurred on Tuesday 5 May, 1818 UT (23 Apr, 1818 Old Style), with maximum eclipse at 07:15 UT. The Sun was 95% covered in a moderate annular eclipse, lasting 5 minutes and 5 seconds and covering a broad path up to 233 km wide.

The annular eclipse lasted for 5 minutes and 5 seconds. Maximum eclipse was at 07:15:37 UT.

During this eclipse the Sun was 0.528° in apparent diameter, 0.9% smaller than average. The Moon was just 2 days before apogee, making it very small. At maximum eclipse it was 0.500° in apparent diameter, which is 5.9% smaller than average; this was not large enough to cover the Sun, which is why this was an annular eclipse. The statistics page has information on the ranges of the sizes of the Sun and Moon, and the Moon data page displays detailed information on the Moon's key dates.

Overview Map

This map sourced from NASA Goddard Space flight Center: GSFC Eclipse Web SiteGSFC Eclipse Web Site
The primary source of all the information on eclipses presented here at Hermit Eclipse. (NASA Goddard Space flight Center)
https://eclipse.gsfc.nasa.gov/eclipse.html
shows the visibility of the annular solar eclipse. It also shows the broader area in which a partial eclipse was seen. (Click on it for the full-sized version.)

Eclipse Season and Saros Series

This eclipse season contains 2 eclipses:

This was the 28th eclipse in solar Saros series 135.The surrounding eclipses in this Saros series are:

This Saros series, solar Saros series 135, is linked to lunar Saros series 128. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 07:15:37 on 5 May UT TDT Date/time (max) 07:15:49 on 5 May TDT
Saros Series 135 Number in Series 27
Penumbral Magnitiude Central Magnitiude 0.9464
Gamma 0.544 Path Width (km) 233
Delta T 0m12s Error ± 0m01s (95%)
Penumbral Duration Partial Duration
Total Duration 5m05s
Partial Rating Total Rating
Sun Distance 150994387 km (80.6%) Moon Distance 403443 km (93.5%)
Sun Diameter 0.528° Moon Diameter 0.493° - 0.500°
Perigee 12:48 on 22 Apr UT Apogee 00:31 on 8 May UT

Note that while all dates and times on this site (except where noted) are in UT, which is within a second of civil time, the dates and times shown in NASA's eclipse listingsGSFC Eclipse Web Site
The primary source of all the information on eclipses presented here at Hermit Eclipse. (NASA Goddard Space flight Center)
https://eclipse.gsfc.nasa.gov/eclipse.html
are in the TDT timescale.

The Sun and Moon distances are shown in km, and as a percentage of their minimum - maximum distances; hence 0% is the closest possible (Earth's perihelion, or the Moon's closest possible perigee) and 100% is the farthest (aphelion, the farthest apogee). The statistics page has information on the ranges of sizes of the Sun and Moon, and the Moon data page displays detailed information on the Moon's key dates.

Data last updated: 2015-06-21 22:11:46 UTC.