How to Photograph a Lunar Eclipse
A lunar eclipse occurs whenever the moon passes through the Earth’s dark shadow, which can only happen during a full moon. There are two or more lunar eclipses a year.
Types of Lunar Eclipses
Penumbral Lunar Eclipse. This occurs when the moon passes through the Earth’s penumbral shadow. These eclipses are subtle and hard to observe.
Partial Lunar Eclipse. This occurs when a portion of the moon passes through the Earth’s umbral shadow. These eclipses are easy to see with the unaided eye.
Total Lunar Eclipse. This occurs when the entire moon passes through the Earth’s umbral shadow. During the total phase (totality), the moon turns a vibrant red color. These are easy to see as well, with the unaided eye.
A lunar eclipse begins as a small notch slowly appears along one edge of the moon. During the next hour, the moon gradually dips deeper into Earth’s dark umbral shadow. If the eclipse is a total one, the last remaining minutes of the partial phases can be quite dramatic. The crescent of the moon grows thinner as darkness propagates through a night sky now deprived of moonlight. If you’re away from city lights, the Milky Way becomes bright and beautiful as the total phase begins.
No matter what kind of camera you own, there are a variety of techniques that you can use to photograph a lunar eclipse: wide-angle, telephoto, multiple exposure and star trail. While you can also use film cameras to photograph eclipses, this article specifically discusses digital camera use.
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