Moon Phases Calendar December 2017

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Interactive moon phases tool

Ready to explore other moon phases? This tool shows the current moon phase and allows you to shift the phases and see how the moon is illuminated at each phase.

Credit: NASA

«December 2017»
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
right
Friday, December 1st, 2017
Waxing Gibbous
2
right
Saturday, December 2nd, 2017
Waxing Gibbous
3
Sunday, December 3rd, 2017
Full Moon
4
Monday, December 4th, 2017
Full Moon
5
right
Tuesday, December 5th, 2017
Waning Gibbous
6
right
Wednesday, December 6th, 2017
Waning Gibbous
7
right
Thursday, December 7th, 2017
Waning Gibbous
8
right
Friday, December 8th, 2017
Waning Gibbous
9
right
Saturday, December 9th, 2017
Waning Gibbous
10
right
Sunday, December 10th, 2017
Waning Gibbous
11
right
Monday, December 11th, 2017
Last Quarter
12
right
Tuesday, December 12th, 2017
Last Quarter
13
left
right
Wednesday, December 13th, 2017
Waning Cresent
14
left
right
Thursday, December 14th, 2017
Waning Cresent
15
left
right
Friday, December 15th, 2017
Waning Cresent
16
left
right
Saturday, December 16th, 2017
Waning Cresent
17
left
right
Sunday, December 17th, 2017
Waning Cresent
18
left
right
Monday, December 18th, 2017
New Moon
19
left
right
Tuesday, December 19th, 2017
New Moon
20
left
right
Wednesday, December 20th, 2017
Waxing Cresent
21
left
right
Thursday, December 21st, 2017
Waxing Cresent
22
left
right
Friday, December 22nd, 2017
Waxing Cresent
23
left
right
Saturday, December 23rd, 2017
Waxing Cresent
24
left
right
Sunday, December 24th, 2017
Waxing Cresent
25
right
Monday, December 25th, 2017
First Quarter
26
right
Tuesday, December 26th, 2017
First Quarter
27
right
Wednesday, December 27th, 2017
Waxing Gibbous
28
right
Thursday, December 28th, 2017
Waxing Gibbous
29
right
Friday, December 29th, 2017
Waxing Gibbous
30
right
Saturday, December 30th, 2017
Waxing Gibbous
31
right
Sunday, December 31st, 2017
Waxing Gibbous
Moon phase image

Moon phases software screen saver.

If you are interested in the phases of the moon or you like night sky screensavers, download the StarMessage screensaver for Microsoft Windows and Apple MacOS (including Mojave and Catalina).
The screensaver displays the moon in its current moon phase, reminds you about the upcoming full moon dates, shows you the names of the full moon, and does much more.

 

Download It's free

 

Diagram explaining the moon phases

This diagram shows the relative positions of the Sun, the Moon and earth and explains how the different moon phases appear.

The visible part of the moon is the part of the moon's surface that gets hit by the sunlight. The rest of the moon disc is almost invisible.

The moon phases are not caused by the shadow of the earth on to the moon. It is the moon's own shadow at the part of its surface that is not hit by the sunlight.

In other words, the visible "sunny" part is made of the places where there is "day" on the moon and the shadow part is where there is "night".

Moon phases diagram explained. Sun, Earth, Moon

Credit: NASA/JPL-Caltech.