As we hit day four of the lunar cycle, the Moon is starting to appear more illuminated. Keep reading to find out what you can spot tonight.
What is today’s Moon phase?
As of Tuesday, April 21, the Moon phase is Waxing Crescent. Tonight, 20% of the moon will be lit up, according to NASA’s Daily Moon Guide.
If you’re looking at the Moon with just your naked eye, you should be able to catch a glimpse of the Mares Crisium and Fecunditatis. If you have either binoculars or a telescope, you’ll see these as well as the Endymion Crater.
When is the next Full Moon?
The next Full Moon is predicted to take place on May 1, the first of two in May.
What are Moon phases?
NASA says that the Moon completes a full orbit around Earth in about 29.5 days, during which it passes through eight stages. Although the same face of the Moon is always turned toward us, the portion illuminated by the Sun shifts as it travels along its path, producing the familiar cycle of full, half, and crescent shapes. These variations are referred to as lunar phases, and there are eight altogether:
New Moon – The Moon is between Earth and the sun, so the side we see is dark (in other words, it’s invisible to the eye).
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Waxing Crescent – A small sliver of light appears on the right side (Northern Hemisphere).
First Quarter – Half of the Moon is lit on the right side. It looks like a half-Moon.
Waxing Gibbous – More than half is lit up, but it’s not quite full yet.
Full Moon – The whole face of the Moon is illuminated and fully visible.
Waning Gibbous – The Moon starts losing light on the right side. (Northern Hemisphere)
Third Quarter (or Last Quarter) – Another half-Moon, but now the left side is lit.
Waning Crescent – A thin sliver of light remains on the left side before going dark again.
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