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Lunar Calendar Month September 2012 (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 September 2012.

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
3rd quarter2012-09-0809:15
new moon2012-09-1522:11
1st quarter2012-09-2215:41
full moon2012-09-2923:19

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during September 2012.

PositionDatesTimeDistanceNotes
Apogee2012-09-0702:01404,295 km
Perigee2012-09-1822:53365,748 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
Jupiter2012-09-08 06:59
Venus2012-09-12 13:09
Spica2012-09-18 01:05
Saturn2012-09-18 10:45
Mars2012-09-19 16:36

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 30 days of September 2012.

September 2012
wMondayTuesdayWednesdayThursdayFridaySaturdaySunday
Week 35
27 Monday
 
28 Tuesday
 
29 Wednesday
 
30 Thursday
 
31 Friday
 
1Saturday
 
99.6% illuminated
Age: 15.3
2Sunday
 
97.3% illuminated
Age: 16.3
Week 36
3Monday
 
93% illuminated
Age: 17.3
4Tuesday
 
87.1% illuminated
Age: 18.2
5Wednesday
 
80% illuminated
Age: 19.1
6Thursday
 
71.8% illuminated
Age: 20
7Friday
 
62.9% illuminated
Age: 20.9
8Saturday
 
53.6% illuminated
Age: 21.8
9Sunday
 
44.1% illuminated
Age: 22.7
Week 37
10Monday
 
34.7% illuminated
Age: 23.6
11Tuesday
 
25.7% illuminated
Age: 24.5
12Wednesday
 
17.4% illuminated
Age: 25.5
13Thursday
 
10.3% illuminated
Age: 26.5
14Friday
 
4.7% illuminated
Age: 27.5
15Saturday
 
1.1% illuminated
Age: 28.5
16Sunday
 
0% illuminated
Age: 0.1
Week 38
17Monday
 
1.5% illuminated
Age: 1.2
18Tuesday
 
5.8% illuminated
Age: 2.3
19Wednesday
 
12.5% illuminated
Age: 3.4
20Thursday
 
21.2% illuminated
Age: 4.5
21Friday
 
31.5% illuminated
Age: 5.6
22Saturday
 
42.6% illuminated
Age: 6.7
23Sunday
 
54% illuminated
Age: 7.8
Week 39
24Monday
 
65% illuminated
Age: 8.8
25Tuesday
 
75% illuminated
Age: 9.8
26Wednesday
 
83.8% illuminated
Age: 10.9
27Thursday
 
90.8% illuminated
Age: 11.9
28Friday
 
96% illuminated
Age: 12.9
29Saturday
 
99% illuminated
Age: 13.8
30Sunday
 
100% illuminated
Age: 14.8
1 Monday
 
2 Tuesday
 
3 Wednesday
 
4 Thursday
 
5 Friday
 
6 Saturday
 
7 Sunday
 
8 Monday
 
9 Tuesday
 
10 Wednesday
 
11 Thursday
 
12 Friday
 
13 Saturday
 
14 Sunday
 
Content last updated on 2018-10-21T17:33:00Z