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Lunar Calendar Month December 2018 (Guam)

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 Hagåtña, Guam 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 moon2018-12-0717:20
1st quarter2018-12-1521:49
full moon2018-12-2303:48
3rd quarter2018-12-2919:34

Apogee and perigee of the Moon

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

PositionDatesTimeDistanceNotes
Apogee2018-12-1222:27405,176 km
Perigee2018-12-2419:53361,059 km

Meteor Activity

Active meteor showers this month and their peak days. For more information, see the meteor shower calendar 2018.

NamePeak Day
Phoenicids2018-12-02
Puppid-Velids2018-12-07
Monocerotids2018-12-09
σ-Hydrids2018-12-12
Geminids2018-12-14
Comae Ber.2018-12-16
Dec. L. Minorids2018-12-20
Ursids2018-12-22

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
Venus2018-12-04 04:42
Saturn2018-12-09 15:30
Mars2018-12-15 09:21
Aldebaran2018-12-21 17:31
Beehive2018-12-25 14:52
Regulus2018-12-27 02:06

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
 
43.6% illuminated
Age:22.8
2Sunday
 
32.8% illuminated
Age:23.8
Week 49
3Monday
 
22.9% illuminated
Age:24.8
4Tuesday
 
14.5% illuminated
Age:25.9
5Wednesday
 
7.8% illuminated
Age:26.9
6Thursday
 
3.1% illuminated
Age:27.9
7Friday
 
0.6% illuminated
Age:28.8
8Saturday
 
0.1% illuminated
Age:0.3
9Sunday
 
1.6% illuminated
Age:1.2
Week 50
10Monday
 
5% illuminated
Age:2.1
11Tuesday
 
10% illuminated
Age:3
12Wednesday
 
16.4% illuminated
Age:3.9
13Thursday
 
23.9% illuminated
Age:4.8
14Friday
 
32.4% illuminated
Age:5.7
15Saturday
 
41.5% illuminated
Age:6.6
16Sunday
 
51% illuminated
Age:7.5
Week 51
17Monday
 
60.7% illuminated
Age:8.4
18Tuesday
 
70.2% illuminated
Age:9.3
19Wednesday
 
79.2% illuminated
Age:10.3
20Thursday
 
87.2% illuminated
Age:11.3
21Friday
 
93.7% illuminated
Age:12.4
22Saturday
 
98.1% illuminated
Age:13.5
23Sunday
 
100% illuminated
Age:14.6
Week 52
24Monday
 
99% illuminated
Age:15.7
25Tuesday
 
95.2% illuminated
Age:16.8
26Wednesday
 
88.8% illuminated
Age:18
27Thursday
 
80.2% illuminated
Age:19.1
28Friday
 
70.1% illuminated
Age:20.2
29Saturday
 
59.2% illuminated
Age:21.3
30Sunday
 
48.1% illuminated
Age:22.3
Week 1
31Monday
 
37.3% illuminated
Age:23.4
1Tuesday
 
2Wednesday
 
3Thursday
 
4Friday
 
5Saturday
 
6Sunday
 
7Monday
 
8Tuesday
 
9Wednesday
 
10Thursday
 
11Friday
 
12Saturday
 
13Sunday
 
Content last updated on 2018-10-21T17:33:00Z