Moon phase today: What the Moon will look like on January 23

The Moon is getting brighter each night as it works its way through the lunar cycle. It'll keep getting brighter and bigger until the Full Moon, on Feb. 1.

What is today’s Moon phase?

As of Friday, Jan. 23, the Moon phase is Waxing Crescent. According to NASA's Daily Moon Guide, 22% of the Moon will be lit up tonight.

You don't need any visual aids tonight, without you'll be able to see the Crisum and Fecunditatis mares. If you have binoculars you'll also be able to catch a glimpse of the Endymion Crater, and with a telescope you can also see the Apollo 17 landing spot.

When is the next Full Moon?

The next Full Moon will be on Feb. 1. The last full moon was on Jan. 3.

What are Moon phases?

The Moon’s phases are part of a repeating lunar cycle that lasts roughly 29 and a half days, according to NASA. This is the length of time it takes the Moon to orbit Earth once. During this time, the Moon moves through eight separate stages. Although the same face of the Moon is always turned toward Earth, how much of it we see lit up changes as its position shifts around the planet. This changing angle of sunlight is what causes the Moon to look fully illuminated, partly lit, or nearly invisible at different times. The eight phases in the lunar cycle are:

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).

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.