We’re nearly at the full moon, which means it’s getting bigger each night.
The lunar cycle is a 29.5-day cycle of eight distinct phases of the moon. According to NASA, these phases happen as the Sun lights up different portions of the moon while it orbits Earth.
Keep reading to find out what you can spot in the night sky tonight, October 2.
What is today’s moon phase?
As of Thursday, Oct. 2, the moon phase is Waxing Gibbous, and according to NASA’s Daily Moon Observation, 75% of its surface is illuminated tonight.
There’s more than half of the moon illuminated tonight, with lots to see. With your naked eye, you’ll be able to see the Mare Imbrium, the Mare Serenitatis, and the Mare Fecunditatis. With binoculars, you can also see the Archimedes Crater, Alphonsus Crater, and the Alps Mountains. Grab a telescope to see even more, with the Apollo 14 and Apollo 11 landing spots also in view.
When is the next full moon?
The next full moon will be on Oct. 7. The last full moon was on Sept. 7.
What are moon phases?
According to NASA, the moon’s phases are part of its 29.5-day orbit around Earth. As the moon moves, the angles between the Sun, Moon, and Earth shift, creating the changing phases we see. From our perspective, the moon sometimes appears full, sometimes seems to vanish completely, but we always see the same side. What changes is how much sunlight is reflected off its surface, depending on its position in orbit.
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This is how we get full moons, half moons, and moons that appear completely invisible. There are eight main moon phases, and they follow a repeating cycle:
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.
Last Quarter (or Third 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.
