April’s full moon is known as the pink moon, but Virginians may notice it has an orange tinge this weekend. Here's why.

An orange or red moon outside of a lunar eclipse is often caused by pollution, such as smoke or dust. The moon will appear red during the eclipse, as sunlight is filtered through Earth's atmosphere.

There are also partial and penumbral eclipses, which are when the sun, Earth and moon are not perfectly aligned. With the moon in the shadow of the Earth, it will appear red-orange, according to NASA.

orange and yellow during a total lunar eclipse. This month's full moon was due to pass through the shadow of Earth either late Thursday night or very early Friday morning, depending on the viewer ...