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Lunar Calendar Month August 2011 (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 August 2011.

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
1st quarter2011-08-0607:08
full moon2011-08-1314:57
3rd quarter2011-08-2117:54
new moon2011-08-2823:04

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during August 2011.

PositionDatesTimeDistanceNotes
Perigee2011-08-0217:00365,755 km
Apogee2011-08-1812:24405,159 km
Perigee2011-08-3013:36360,857 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
Mercury2011-08-01 07:20
Spica2011-08-04 23:08
Pleiades2011-08-21 19:40
Mars2011-08-25 09:36

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 31 days of August 2011.

August 2011
wMondayTuesdayWednesdayThursdayFridaySaturdaySunday
Week 31
1Monday
 
2.7% illuminated
Age: 1.5
2Tuesday
 
7.8% illuminated
Age: 2.7
3Wednesday
 
15.2% illuminated
Age: 3.8
4Thursday
 
24.6% illuminated
Age: 4.9
5Friday
 
35.2% illuminated
Age: 6
6Saturday
 
46.5% illuminated
Age: 7.1
7Sunday
 
57.8% illuminated
Age: 8.1
Week 32
8Monday
 
68.6% illuminated
Age: 9.2
9Tuesday
 
78.3% illuminated
Age: 10.2
10Wednesday
 
86.5% illuminated
Age: 11.2
11Thursday
 
92.9% illuminated
Age: 12.2
12Friday
 
97.3% illuminated
Age: 13.2
13Saturday
 
99.6% illuminated
Age: 14.2
14Sunday
 
99.8% illuminated
Age: 15.1
Week 33
15Monday
 
98.1% illuminated
Age: 16.1
16Tuesday
 
94.5% illuminated
Age: 17
17Wednesday
 
89.3% illuminated
Age: 17.9
18Thursday
 
82.8% illuminated
Age: 18.8
19Friday
 
75% illuminated
Age: 19.7
20Saturday
 
66.4% illuminated
Age: 20.6
21Sunday
 
57.2% illuminated
Age: 21.5
Week 34
22Monday
 
47.5% illuminated
Age: 22.4
23Tuesday
 
37.8% illuminated
Age: 23.3
24Wednesday
 
28.2% illuminated
Age: 24.3
25Thursday
 
19.3% illuminated
Age: 25.3
26Friday
 
11.5% illuminated
Age: 26.3
27Saturday
 
5.3% illuminated
Age: 27.4
28Sunday
 
1.3% illuminated
Age: 28.5
Week 35
29Monday
 
0% illuminated
Age: 0
30Tuesday
 
1.6% illuminated
Age: 1.2
31Wednesday
 
6.1% illuminated
Age: 2.3
1 Thursday
 
2 Friday
 
3 Saturday
 
4 Sunday
 
5 Monday
 
6 Tuesday
 
7 Wednesday
 
8 Thursday
 
9 Friday
 
10 Saturday
 
11 Sunday
 
12 Monday
 
13 Tuesday
 
14 Wednesday
 
15 Thursday
 
16 Friday
 
17 Saturday
 
18 Sunday
 
Content last updated on 2018-10-21T17:33:00Z