May 2013 lunar eclipse
| Penumbral eclipse | |||||||||
| Date | May 25, 2013 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | 1.5350 | ||||||||
| Magnitude | −0.9322 | ||||||||
| Saros cycle | 150 (1 of 71) | ||||||||
| Penumbral | 33 minutes, 34 seconds | ||||||||
| |||||||||
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, May 25, 2013, with an umbral magnitude of −0.9322. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's penumbra. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. Occurring only about 18 hours before perigee (on May 25, 2013, at 21:40 UTC), the Moon's apparent diameter was larger.
This eclipse was visually imperceptible due to the small entry into the penumbral shadow. It also marked the beginning of Saros series 150.