Lunar Calendar Month January 2017 (Mongolia)

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 Ulan Bator, Mongolia during January 2017.

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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	2017-01-06	03:47
full moon	2017-01-12	19:34
3rd quarter	2017-01-20	06:13
new moon	2017-01-28	08:07

Apogee and perigee of the Moon

The following table shows the dates of perigee and apogee of the Moon during January 2017.

Position	Dates	Time	Distance	Notes
Perigee	2017-01-10	14:08	363,241 km
Apogee	2017-01-22	08:15	404,911 km

Meteor Activity

Active meteor showers this month and their peak days. For more information, see the meteor shower calendar 2017.

Name	Peak Day
Quadrantids	2017-01-04

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
Venus	2017-01-02 17:20
Mars	2017-01-03 14:47
Aldebaran	2017-01-09 22:07
Regulus	2017-01-15 12:07
Jupiter	2017-01-19 13:26
Saturn	2017-01-24 18:37
Mercury	2017-01-26 08:46
Venus	2017-01-31 22:34

Illumination of the Moon

The following table depicts the illumination of the Moon, calculated at 00:00, throughtout the 31 days of January 2017.

January 2017
w	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
Week 52	26Monday	27Tuesday	28Wednesday	29Thursday	30Friday	31Saturday	1Sunday 5.5% illuminated Age:2.2
Week 1	2Monday 11.1% illuminated Age:3.2	3Tuesday 18.4% illuminated Age:4.2	4Wednesday 27.4% illuminated Age:5.2	5Thursday 37.5% illuminated Age:6.2	6Friday 48.4% illuminated Age:7.2	7Saturday 59.7% illuminated Age:8.3	8Sunday 70.6% illuminated Age:9.4
Week 2	9Monday 80.6% illuminated Age:10.5	10Tuesday 89.1% illuminated Age:11.6	11Wednesday 95.4% illuminated Age:12.7	12Thursday 99.1% illuminated Age:13.9	13Friday 100% illuminated Age:15	14Saturday 98.1% illuminated Age:16	15Sunday 93.9% illuminated Age:17.1
Week 3	16Monday 87.7% illuminated Age:18.1	17Tuesday 80% illuminated Age:19.1	18Wednesday 71.4% illuminated Age:20.1	19Thursday 62.1% illuminated Age:21	20Friday 52.6% illuminated Age:21.9	21Saturday 43.1% illuminated Age:22.8	22Sunday 33.9% illuminated Age:23.7
Week 4	23Monday 25.3% illuminated Age:24.6	24Tuesday 17.6% illuminated Age:25.5	25Wednesday 10.9% illuminated Age:26.4	26Thursday 5.6% illuminated Age:27.3	27Friday 1.9% illuminated Age:28.2	28Saturday 0.1% illuminated Age:29.2	29Sunday 0.5% illuminated Age:0.6
Week 5	30Monday 3% illuminated Age:1.6	31Tuesday 7.7% illuminated Age:2.6	1Wednesday	2Thursday	3Friday	4Saturday	5Sunday
	6Monday	7Tuesday	8Wednesday	9Thursday	10Friday	11Saturday	12Sunday