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Lunar Calendar Month January 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 January 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
new moon2011-01-0404:03
1st quarter2011-01-1206:31
full moon2011-01-1916:21
3rd quarter2011-01-2607:57

Apogee and perigee of the Moon

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

PositionDatesTimeDistanceNotes
Apogee2011-01-1000:39404,975 km
Perigee2011-01-2119:11362,792 km

Eclipses in January 2011

The following is information about eclipses occuring worldwide during January 2011. The eclipses listed here may be totally visible, partly visible or not visible in any part of United States.

TypeDatesSarosNotes
solar eclipse2011-01-04151

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
Antares2011-01-01 13:07
Mercury2011-01-02 09:32
Pleiades2011-01-15 07:39
Antares2011-01-28 18:53
Venus2011-01-29 22:36

Illumination of the Moon

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

January 2011
wMondayTuesdayWednesdayThursdayFridaySaturdaySunday
Week 52
27 Monday
 
28 Tuesday
 
29 Wednesday
 
30 Thursday
 
31 Friday
 
1Saturday
 
10.9% illuminated
Age: 26.4
2Sunday
 
5.1% illuminated
Age: 27.4
Week 1
3Monday
 
1.5% illuminated
Age: 28.4
4Tuesday
 
0% illuminated
Age: 29.4
5Wednesday
 
0.7% illuminated
Age: 0.8
6Thursday
 
3.4% illuminated
Age: 1.7
7Friday
 
7.9% illuminated
Age: 2.7
8Saturday
 
13.8% illuminated
Age: 3.6
9Sunday
 
21% illuminated
Age: 4.5
Week 2
10Monday
 
29.2% illuminated
Age: 5.4
11Tuesday
 
38.1% illuminated
Age: 6.3
12Wednesday
 
47.4% illuminated
Age: 7.1
13Thursday
 
57% illuminated
Age: 8
14Friday
 
66.5% illuminated
Age: 9
15Saturday
 
75.6% illuminated
Age: 9.9
16Sunday
 
83.9% illuminated
Age: 10.9
Week 3
17Monday
 
90.9% illuminated
Age: 11.9
18Tuesday
 
96.3% illuminated
Age: 12.9
19Wednesday
 
99.4% illuminated
Age: 14
20Thursday
 
99.9% illuminated
Age: 15.1
21Friday
 
97.5% illuminated
Age: 16.2
22Saturday
 
92.5% illuminated
Age: 17.4
23Sunday
 
85% illuminated
Age: 18.5
Week 4
24Monday
 
75.7% illuminated
Age: 19.6
25Tuesday
 
65.1% illuminated
Age: 20.7
26Wednesday
 
54% illuminated
Age: 21.8
27Thursday
 
42.8% illuminated
Age: 22.8
28Friday
 
32.3% illuminated
Age: 23.9
29Saturday
 
22.7% illuminated
Age: 24.9
30Sunday
 
14.6% illuminated
Age: 25.8
Week 5
31Monday
 
8.1% illuminated
Age: 26.8
1 Tuesday
 
2 Wednesday
 
3 Thursday
 
4 Friday
 
5 Saturday
 
6 Sunday
 
7 Monday
 
8 Tuesday
 
9 Wednesday
 
10 Thursday
 
11 Friday
 
12 Saturday
 
13 Sunday
 
Content last updated on 2018-10-21T17:33:00Z