We’ve reached the last phase of the lunar cycle before the New Moon. This means that each night the moon will appear less and less visible, until there’s nothing to see at all. Keep reading to see what this means for tonight’s moon.
What is today’s moon phase?
As of Friday, Dec. 12, the moon phase is Waning Crescent. This means 43% of the moon is lit up tonight, according to NASA’s Daily Moon Observation.
If you don’t have any visual aids, you can still see the Mare Imbrium, Aristarchus Plateau, and Copernicus Crater when you look up tonight. If you have binoculars, you’ll also be able to see the Grimaldi Basin, Clavius Crater, and the Archimedes Crater. With a telescope, Reiner Gamma, Schiller Crater, and Apollo 14 landing spot will also become visible.
When is the next full moon?
The next full moon will be on Jan. 3.
What are moon phases?
NASA says the Moon goes through a cycle of about 29.5 days, and during that time we see its different phases. Even though we always see the same side of the Moon, the sunlight hitting it changes as it orbits Earth. That’s what makes it look full, half-lit, or sometimes completely hidden. The cycle has eight main phases:
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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