A partial eclipse of the Sun occurred on Friday 1 July, 2011 UT, lasting from 07:53–09:22 UT. With only 10% of the Sun covered at maximum eclipse, this was a very marginal eclipse at best, and rather uninteresting. It was visible from a small patch of ocean near Antarctica.

The timings of the phases of the overall eclipse worldwide are as follows. In any particular place it would have been seen for a significantly shorter duration as the shadow moved across the Earth:

Partial eclipse began: 07:53:47 UT
Maximum eclipse: 08:38:24 UT
Partial eclipse ended: 09:22:45 UT

During this eclipse the Sun was 0.524° in apparent diameter, 1.6% smaller than average. The Moon was 7 days after apogee and 6 days before perigee. At maximum eclipse it was 0.521° in apparent diameter, which is 1.8% smaller than average. This has no real effect on this eclipse, since the Moon's central shadow misses the Earth, making this a partial eclipse. The statistics page has information on the ranges of the sizes of the Sun and Moon.

This tiny partial eclipse must surely set a record for the most insignificant solar eclipse.

Overview Map

This map sourced from NASA's Eclipse Web Site shows the visibility of the partial solar eclipse. (Click on it for the full-sized version.)

Eclipse Season and Saros Series

This eclipse season contains 3 eclipses:

This was the 1st eclipse in solar Saros series 156.The surrounding eclipses in this Saros series are:

Eclipse Parameters

UT Date/time (max) 08:38:23 on 1 Jul UT TDT Date/time (max) 08:39:30 on 1 Jul TDT
Saros Series 156 Number in Series 0
Penumbral Magnitiude Central Magnitiude 0.0971
Gamma -1.4917 Path Width (km) 0
Delta T 1m07s Error ± 0m01s (95%)
Penumbral Duration Partial Duration
Total Duration
Partial Rating Total Rating
Sun Distance 152097491 km (103.5%) Moon Distance 381954 km (50.8%)
Sun Diameter 0.524° Moon Diameter 0.521° - 0.521°
Apogee 04:13 on 24 Jun UT Perigee 14:05 on 7 Jul UT
Contact p1 07:53:47 on 1 Jul UT Contact p2
Contact u1 Contact u2
Max eclipse 08:38:24 on 1 Jul UT
Contact u3 Contact u4
Contact p3 Contact p4 09:22:45 on 1 Jul 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 listings 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.

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