Full moon falls on May 18

Full moon – when the moon is most opposite the sun for this month – falls on May 18, 2019, at 21:11 UTC. As the 3rd of 4 full moons in a season, it’ll be called a Blue Moon.

1st quarter moon is May 11-12

The 1st quarter moon comes on May 12 at 1:12 UTC. At European and American time zones, you’ll find it high up at sunset on May 10 and 11. It appears nearly or completely half-illuminated, like half a pie.

New moon is May 4

You can’t see a new moon; it’s between the Earth and sun and crosses the sky with the sun throughout the day. Will you see the returning young crescent moon in the west after sunset May 5? Maybe, with effort. The young moon will sweep past Mars around May 6 to 8.

Do we all see the same moon phase?

One Earth. One sky. One moon phase (more or less) from all of Earth. So why (and how) does the moon look different from different parts of Earth?

Top 4 keys to understanding moon phases

The most important key is to think of the moon as a world in space, with a day and night side.

What is a waning gibbous moon?

A waning gibbous moon is a moon between full and last quarter. Watch for this moon phase from late night through early morning.

Crescent moon shot with a blue filter, so that the darkened portion of the moon looks blue.

What is a waxing crescent moon?

Many people report seeing earthshine on a waxing crescent moon. That’s when the darkened portion of the crescent glows dimly with light reflected from Earth.

What’s the youngest moon you can see?

It’s rare to see a moon within 24 hours of new moon. This week, we received a couple of images of even-younger moons. What’s the youngest moon you can see? Info and pics here.

What is a waxing gibbous moon?

A waxing gibbous moon appears more than half lighted, but less than full. It rises before sundown and sets somewhere between midnight and dawn.

What is a waning crescent moon?

A waning crescent moon is up in the east before sunrise. It’s waning toward new moon, when the moon will be between the Earth and sun.

Quarter moon or a half moon?

Half the moon always faces us. And half the moon is always lit by the sun. But, in the language of astronomers, there are no ‘half moons.’