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Lunar Calendar Month December 2018 (Northern Hemisphere)

The Moon is the only natural satellite of the Earth and the fifth largest moon in the Solar System. It is the largest natural satellite in the solar system relative to the size of its planet. The following is information specific for Washington, Northern Hemisphere during December 2018.

Choose a country from the list to get relevant information:

Date and time of moon phases

The information in the following table comes from calculations published by the Astronomical Applications Department of the U.S. Naval Observatory.

Moon phasesDatesTime
new moon2018-12-0702:20
1st quarter2018-12-1506:49
full moon2018-12-2212:48
3rd quarter2018-12-2904:34

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during December 2018.

PositionDatesTimeDistanceNotes
Apogee2018-12-1207:27405,176 km
Perigee2018-12-2404:53361,059 km

Moon-Planet Conjunctions

A Moon-planet conjunction occurs when an astronomical object has either the same, or nearly the same, right ascension or the same ecliptic longitude of that of the Moon, as observed from Earth.

Astronomical ObjectsDate and Time
Venus2018-12-03 13:42
Saturn2018-12-09 00:30
Mars2018-12-14 18:21
Aldebaran2018-12-21 02:31
Beehive2018-12-24 23:52
Regulus2018-12-26 11:06

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 31 days of December 2018.

December 2018
wMondayTuesdayWednesdayThursdayFridaySaturdaySunday
Week 48
26Monday
 
27Tuesday
 
28Wednesday
 
29Thursday
 
30Friday
 
1Saturday
 
36.7% illuminated
Age:23.4
2Sunday
 
26.5% illuminated
Age:24.5
Week 49
3Monday
 
17.4% illuminated
Age:25.5
4Tuesday
 
10.1% illuminated
Age:26.5
5Wednesday
 
4.6% illuminated
Age:27.5
6Thursday
 
1.3% illuminated
Age:28.5
7Friday
 
0% illuminated
Age:29.4
8Saturday
 
0.8% illuminated
Age:0.8
9Sunday
 
3.5% illuminated
Age:1.8
Week 50
10Monday
 
7.9% illuminated
Age:2.7
11Tuesday
 
13.8% illuminated
Age:3.6
12Wednesday
 
21% illuminated
Age:4.5
13Thursday
 
29.1% illuminated
Age:5.4
14Friday
 
38% illuminated
Age:6.2
15Saturday
 
47.4% illuminated
Age:7.1
16Sunday
 
57.1% illuminated
Age:8.1
Week 51
17Monday
 
66.7% illuminated
Age:9
18Tuesday
 
75.9% illuminated
Age:9.9
19Wednesday
 
84.3% illuminated
Age:10.9
20Thursday
 
91.4% illuminated
Age:12
21Friday
 
96.7% illuminated
Age:13
22Saturday
 
99.6% illuminated
Age:14.1
23Sunday
 
99.7% illuminated
Age:15.3
Week 52
24Monday
 
97% illuminated
Age:16.4
25Tuesday
 
91.5% illuminated
Age:17.6
26Wednesday
 
83.6% illuminated
Age:18.7
27Thursday
 
74% illuminated
Age:19.8
28Friday
 
63.3% illuminated
Age:20.9
29Saturday
 
52.2% illuminated
Age:21.9
30Sunday
 
41.3% illuminated
Age:23
Week 1
31Monday
 
31% illuminated
Age:24
1Tuesday
 
2Wednesday
 
3Thursday
 
4Friday
 
5Saturday
 
6Sunday
 
7Monday
 
8Tuesday
 
9Wednesday
 
10Thursday
 
11Friday
 
12Saturday
 
13Sunday
 
Content last updated on 2018-10-21T17:33:00Z