Sign In

Lunar Calendar Month January 2023 (Puerto Rico)

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 San Juan, Puerto Rico during January 2023.

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 moon2023-01-0619:08
3rd quarter2023-01-1422:10
new moon2023-01-2116:53
1st quarter2023-01-2811:19

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during January 2023.

PositionDatesTimeDistanceNotes
Apogee2023-01-0805:20406,458 km
Perigee2023-01-2116:59356,569 kmMaximum perigee in 2023!

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
Pleiades2023-01-02 21:24
Mars2023-01-03 15:35
Pollux2023-01-07 09:40
Beehive2023-01-08 11:23
Antares2023-01-18 05:32
Saturn2023-01-23 03:22
Venus2023-01-23 04:20
Jupiter2023-01-25 22:00
Pleiades2023-01-30 03:21
Mars2023-01-31 00:24

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 31 days of January 2023.

January 2023
wMondayTuesdayWednesdayThursdayFridaySaturdaySunday
Week 52
26 Monday
 
27 Tuesday
 
28 Wednesday
 
29 Thursday
 
30 Friday
 
31 Saturday
 
1Sunday
 
71.2% illuminated
Age: 9.4
Week 1
2Monday
 
79.9% illuminated
Age: 10.4
3Tuesday
 
87.2% illuminated
Age: 11.3
4Wednesday
 
93% illuminated
Age: 12.2
5Thursday
 
97.1% illuminated
Age: 13.2
6Friday
 
99.4% illuminated
Age: 14.1
7Saturday
 
100% illuminated
Age: 15
8Sunday
 
98.7% illuminated
Age: 15.8
Week 2
9Monday
 
95.7% illuminated
Age: 16.7
10Tuesday
 
91.1% illuminated
Age: 17.6
11Wednesday
 
84.9% illuminated
Age: 18.5
12Thursday
 
77.5% illuminated
Age: 19.4
13Friday
 
68.8% illuminated
Age: 20.3
14Saturday
 
59.3% illuminated
Age: 21.3
15Sunday
 
49.2% illuminated
Age: 22.2
Week 3
16Monday
 
38.7% illuminated
Age: 23.2
17Tuesday
 
28.5% illuminated
Age: 24.2
18Wednesday
 
18.9% illuminated
Age: 25.3
19Thursday
 
10.6% illuminated
Age: 26.4
20Friday
 
4.4% illuminated
Age: 27.5
21Saturday
 
0.8% illuminated
Age: 28.7
22Sunday
 
0.1% illuminated
Age: 0.3
Week 4
23Monday
 
2.6% illuminated
Age: 1.5
24Tuesday
 
7.8% illuminated
Age: 2.7
25Wednesday
 
15.3% illuminated
Age: 3.8
26Thursday
 
24.4% illuminated
Age: 4.9
27Friday
 
34.5% illuminated
Age: 5.9
28Saturday
 
44.9% illuminated
Age: 6.9
29Sunday
 
55.2% illuminated
Age: 7.9
Week 5
30Monday
 
65.1% illuminated
Age: 8.8
31Tuesday
 
74.1% illuminated
Age: 9.7
1 Wednesday
 
2 Thursday
 
3 Friday
 
4 Saturday
 
5 Sunday
 
6 Monday
 
7 Tuesday
 
8 Wednesday
 
9 Thursday
 
10 Friday
 
11 Saturday
 
12 Sunday
 
Content last updated on 2018-10-21T17:33:00Z