Moon Phases Calendar December 1990

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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 1990»
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
right
Saturday, December 1st, 1990
Waxing Gibbous
2
Sunday, December 2nd, 1990
Full Moon
3
right
Monday, December 3rd, 1990
Waning Gibbous
4
right
Tuesday, December 4th, 1990
Waning Gibbous
5
right
Wednesday, December 5th, 1990
Waning Gibbous
6
right
Thursday, December 6th, 1990
Waning Gibbous
7
right
Friday, December 7th, 1990
Waning Gibbous
8
right
Saturday, December 8th, 1990
Waning Gibbous
9
right
Sunday, December 9th, 1990
Last Quarter
10
right
Monday, December 10th, 1990
Last Quarter
11
left
right
Tuesday, December 11th, 1990
Waning Cresent
12
left
right
Wednesday, December 12th, 1990
Waning Cresent
13
left
right
Thursday, December 13th, 1990
Waning Cresent
14
left
right
Friday, December 14th, 1990
Waning Cresent
15
left
right
Saturday, December 15th, 1990
Waning Cresent
16
left
right
Sunday, December 16th, 1990
New Moon
17
left
right
Monday, December 17th, 1990
New Moon
18
left
right
Tuesday, December 18th, 1990
Waxing Cresent
19
left
right
Wednesday, December 19th, 1990
Waxing Cresent
20
left
right
Thursday, December 20th, 1990
Waxing Cresent
21
left
right
Friday, December 21st, 1990
Waxing Cresent
22
left
right
Saturday, December 22nd, 1990
Waxing Cresent
23
left
right
Sunday, December 23rd, 1990
Waxing Cresent
24
right
Monday, December 24th, 1990
First Quarter
25
right
Tuesday, December 25th, 1990
Waxing Gibbous
26
right
Wednesday, December 26th, 1990
Waxing Gibbous
27
right
Thursday, December 27th, 1990
Waxing Gibbous
28
right
Friday, December 28th, 1990
Waxing Gibbous
29
right
Saturday, December 29th, 1990
Waxing Gibbous
30
right
Sunday, December 30th, 1990
Waxing Gibbous
31
Monday, December 31st, 1990
Full Moon
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.