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Lunar Calendar Month May 2015 (United States)

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, District of Columbia, United States during May 2015.

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
full moon2015-05-0323:42
3rd quarter2015-05-1106:36
new moon2015-05-1800:13
1st quarter2015-05-2513:19

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during May 2015.

PositionDatesTimeDistanceNotes
Perigee2015-05-1420:24366,023 km
Apogee2015-05-2618:14404,245 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
Saturn2015-05-05 12:18

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 31 days of May 2015.

May 2015
wMondayTuesdayWednesdayThursdayFridaySaturdaySunday
Week 18
27Monday
 
28Tuesday
 
29Wednesday
 
30Thursday
 
1Friday
 
91.6% illuminated
Age:12
2Saturday
 
96.2% illuminated
Age:12.9
3Sunday
 
99% illuminated
Age:13.8
Week 19
4Monday
 
100% illuminated
Age:14.8
5Tuesday
 
98.9% illuminated
Age:15.7
6Wednesday
 
95.7% illuminated
Age:16.7
7Thursday
 
90.5% illuminated
Age:17.7
8Friday
 
83.3% illuminated
Age:18.7
9Saturday
 
74.5% illuminated
Age:19.7
10Sunday
 
64.3% illuminated
Age:20.8
Week 20
11Monday
 
53.2% illuminated
Age:21.8
12Tuesday
 
41.9% illuminated
Age:22.9
13Wednesday
 
30.8% illuminated
Age:24
14Thursday
 
20.6% illuminated
Age:25.1
15Friday
 
11.9% illuminated
Age:26.2
16Saturday
 
5.4% illuminated
Age:27.3
17Sunday
 
1.3% illuminated
Age:28.4
Week 21
18Monday
 
0% illuminated
Age:0
19Tuesday
 
1.3% illuminated
Age:1.1
20Wednesday
 
5% illuminated
Age:2.1
21Thursday
 
10.6% illuminated
Age:3.1
22Friday
 
17.9% illuminated
Age:4.1
23Saturday
 
26.2% illuminated
Age:5
24Sunday
 
35.2% illuminated
Age:6
Week 22
25Monday
 
44.6% illuminated
Age:6.9
26Tuesday
 
54.1% illuminated
Age:7.8
27Wednesday
 
63.5% illuminated
Age:8.7
28Thursday
 
72.3% illuminated
Age:9.6
29Friday
 
80.4% illuminated
Age:10.5
30Saturday
 
87.6% illuminated
Age:11.4
31Sunday
 
93.4% illuminated
Age:12.3
1Monday
 
2Tuesday
 
3Wednesday
 
4Thursday
 
5Friday
 
6Saturday
 
7Sunday
 
8Monday
 
9Tuesday
 
10Wednesday
 
11Thursday
 
12Friday
 
13Saturday
 
14Sunday
 
Content last updated on 2018-10-21T17:33:00Z