April 2015 lunar eclipse

A total lunar eclipse took place on 4 April 2015. It is the former of two total lunar eclipses in 2015, and the third in a tetrad (four total lunar eclipses in series). Other eclipses in the tetrad are those of 15 April 2014, 8 October 2014, and 28 September 2015.

This is the 30th member of Lunar Saros 132, and the first total eclipse. The previous event was the March 1997 lunar eclipse, being slightly partial.

Totality lasted only 4 minutes and 43 seconds, making it the shortest lunar totality in almost five centuries since 17 October 1529 (which lasted 1 minute and 42 seconds). Another shortest occurs on December 28 1917, lasting (11 minutes and 58 seconds). The next very short lunar totality will occur on 26 May 2021 (which will last 14 minutes and 24 seconds). This was the sixth total lunar eclipse out of nine with totality under 5 minutes in a five millennium period between 2,000 BC and 3,000 AD.

However, due to the oblateness of the Earth, this lunar eclipse may have actually been (barely) a partial eclipse.

This eclipsed moon was 12.9% smaller in apparent diameter than the supermoon September 2015 lunar eclipse, measured as 29.66' and 33.47' in diameter from the center of the earth. It occurred 3 days before apogee at 29.42'.

The eclipse was visible across the Pacific, including all of Australia and New Zealand. It was visible near sunrise for North America, and after sunset for eastern Asia including India.

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