Lunar Calendar Month July 2023 (Canada)

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 Ottawa, Canada during July 2023.

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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 phases	Dates	Time
full moon	2023-07-03	07:39
3rd quarter	2023-07-09	21:48
new moon	2023-07-17	14:32
1st quarter	2023-07-25	18:07

Apogee and perigee of the Moon

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

Position	Dates	Time	Distance	Notes
Perigee	2023-07-04	18:29	360,149 km
Apogee	2023-07-20	02:58	406,289 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 Objects	Date and Time
Antares	2023-07-01 03:20
Saturn	2023-07-06 23:05
Jupiter	2023-07-11 17:18
Pleiades	2023-07-13 02:31
Mars	2023-07-21 00:00
Antares	2023-07-28 13:11

Illumination of the Moon

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

July 2023
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 26	26 Monday	27 Tuesday	28 Wednesday	29 Thursday	30 Friday	1Saturday 92.7% illuminated Age: 12.2	2Sunday 97.5% illuminated Age: 13.3
Week 27	3Monday 99.9% illuminated Age: 14.4	4Tuesday 99.3% illuminated Age: 15.6	5Wednesday 95.8% illuminated Age: 16.7	6Thursday 89.5% illuminated Age: 17.9	7Friday 81.1% illuminated Age: 19	8Saturday 71.1% illuminated Age: 20.1	9Sunday 60.2% illuminated Age: 21.2
Week 28	10Monday 49.1% illuminated Age: 22.2	11Tuesday 38.3% illuminated Age: 23.3	12Wednesday 28.3% illuminated Age: 24.3	13Thursday 19.5% illuminated Age: 25.2	14Friday 12.1% illuminated Age: 26.2	15Saturday 6.4% illuminated Age: 27.1	16Sunday 2.4% illuminated Age: 28.1
Week 29	17Monday 0.3% illuminated Age: 29	18Tuesday 0.1% illuminated Age: 0.4	19Wednesday 1.8% illuminated Age: 1.3	20Thursday 5.2% illuminated Age: 2.2	21Friday 10.2% illuminated Age: 3.1	22Saturday 16.6% illuminated Age: 3.9	23Sunday 24.3% illuminated Age: 4.8
Week 30	24Monday 33% illuminated Age: 5.8	25Tuesday 42.6% illuminated Age: 6.7	26Wednesday 52.6% illuminated Age: 7.6	27Thursday 62.9% illuminated Age: 8.6	28Friday 72.9% illuminated Age: 9.6	29Saturday 82.2% illuminated Age: 10.7	30Sunday 90.2% illuminated Age: 11.8
Week 31	31Monday 96.1% illuminated Age: 12.9	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