My Birthday Moon

The Moon from that day, here for you now.

Wed, January 22, 2031

Waning Crescent

A slender light before the new Moon. Between one ending and the next beginning.

Time has passed. The shape of that day’s Moon can still be found.

Phase and illumination use noon in Korea (KST) on the selected date. They do not represent the Moon’s exact position at your birth time and place.

A small record of that day
Date
Wed, January 22, 2031
Sunlit surface
2%
Lunar Date
Lunar 12/29

Share your first sky with someone close.

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Moon Phase on 22 January 2031: Waning Crescent, 2% Lit

The Moon on 22 January 2031: Waning Crescent, 2% illuminated
Rendered view of the Moon on 22 January 2031 from NASA lunar surface maps

The Moon on January 22, 2031

On January 22, 2031, the Moon will be a waning crescent, 28.4 days old and 2% illuminated, in the constellation Sagittarius about 359,670 km (223,489 mi) from Earth. The next New Moon will follow on January 23, 2031.

Phase
Waning Crescent
Illumination
2%
Moon age
28.4 days since New Moon
Distance from Earth
359,670 km (223,489 mi)
Constellation
Sagittarius
Previous Full Moon
January 8, 2031
Next New Moon
January 23, 2031
Next Full Moon
February 7, 2031

Moon phases around January 22, 2031

Moon phase, illumination and age for the three days before and after January 22, 2031
DateMoonLitAge
1/19 SunWaning Crescent22%25.4d
1/20 MonWaning Crescent13%26.4d
1/21 TueWaning Crescent6%27.4d
1/22 WedWaning Crescent2%28.4d
1/23 ThuNew Moon0%29.4d
1/24 FriWaxing Crescent1%0.9d
1/25 SatWaxing Crescent5%1.9d

Values are calculated with Astronomy Engine at 12:00 Korea Standard Time (03:00 UTC) on each date; New and Full Moon dates are in UTC. Moon age counts days since the New Moon; distance is centre to centre.

How to find the Moon on your birthday

  1. Choose your birth year, month and day, then show your Moon.
  2. Read the phase name and illuminated percentage. A Full Moon appears almost completely lit; a crescent shows a smaller sunlit portion.
  3. Select “Share this Moon” to create an image card for that date.

Does birth time or location change the result?

This date-only calculator uses Astronomy Engine at noon Korea Standard Time (03:00 UTC) on the selected date. It does not calculate the exact sky at your birth time or birthplace. Near a phase transition, a different time on the same date can give a different phase or illumination.

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