Lunar Calendar Month October 2027 (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 October 2027.

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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
1st quarter	2027-10-07	07:47
full moon	2027-10-15	09:47
3rd quarter	2027-10-22	13:29
new moon	2027-10-29	09:36

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during October 2027.

Position	Dates	Time	Distance	Notes
Apogee	2027-10-09	11:48	404,530 km
Perigee	2027-10-25	01:37	368,650 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
Mercury	2027-10-01 20:27
Mars	2027-10-03 04:58
Antares	2027-10-04 13:01
Pleiades	2027-10-18 06:48
Beehive	2027-10-23 04:01
Regulus	2027-10-24 19:09
Jupiter	2027-10-26 05:33
Venus	2027-10-31 03:57
Antares	2027-10-31 22:13

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 31 days of October 2027.

October 2027
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 39	27 Monday	28 Tuesday	29 Wednesday	30 Thursday	1Friday 1.6% illuminated Age: 1.2	2Saturday 5.6% illuminated Age: 2.2	3Sunday 11.7% illuminated Age: 3.3
Week 40	4Monday 19.3% illuminated Age: 4.3	5Tuesday 27.9% illuminated Age: 5.2	6Wednesday 37.2% illuminated Age: 6.2	7Thursday 46.8% illuminated Age: 7.1	8Friday 56.3% illuminated Age: 8	9Saturday 65.6% illuminated Age: 8.9	10Sunday 74.2% illuminated Age: 9.8
Week 41	11Monday 82% illuminated Age: 10.7	12Tuesday 88.8% illuminated Age: 11.6	13Wednesday 94.2% illuminated Age: 12.5	14Thursday 97.9% illuminated Age: 13.4	15Friday 99.8% illuminated Age: 14.4	16Saturday 99.6% illuminated Age: 15.3	17Sunday 97.2% illuminated Age: 16.3
Week 42	18Monday 92.6% illuminated Age: 17.3	19Tuesday 85.9% illuminated Age: 18.4	20Wednesday 77.4% illuminated Age: 19.4	21Thursday 67.4% illuminated Age: 20.5	22Friday 56.5% illuminated Age: 21.5	23Saturday 45.1% illuminated Age: 22.6	24Sunday 33.9% illuminated Age: 23.7
Week 43	25Monday 23.4% illuminated Age: 24.8	26Tuesday 14.4% illuminated Age: 25.9	27Wednesday 7.3% illuminated Age: 27	28Thursday 2.5% illuminated Age: 28	29Friday 0.2% illuminated Age: 29.1	30Saturday 0.4% illuminated Age: 0.6	31Sunday 3% illuminated Age: 1.6
	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