My Birthday Moon
The Moon from that day, here for you now.
Fri, July 31, 2037
Waning Gibbous
A Moon just past its fullness. Its shadow was slowly growing again.
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
- Fri, July 31, 2037
- Sunlit surface
- 86%
- Lunar Date
- Lunar 6/19
Share your first sky with someone close.
Moon Phase on 31 July 2037: Waning Gibbous, 86% Lit

The Moon on July 31, 2037
On July 31, 2037, the Moon will be a waning gibbous, 18.0 days old and 86% illuminated, in the constellation Aquarius about 405,304 km (251,844 mi) from Earth. The next New Moon will follow on August 11, 2037.
- Phase
- Waning Gibbous
- Illumination
- 86%
- Moon age
- 18.0 days since New Moon
- Distance from Earth
- 405,304 km (251,844 mi)
- Constellation
- Aquarius
- Previous Full Moon
- July 27, 2037
- Next New Moon
- August 11, 2037
- Next Full Moon
- August 25, 2037
Moon phases around July 31, 2037
| Date | Moon | Lit | Age |
|---|---|---|---|
| 7/28 Tue | Waning Gibbous | 99% | 15.0d |
| 7/29 Wed | Waning Gibbous | 96% | 16.0d |
| 7/30 Thu | Waning Gibbous | 92% | 17.0d |
| 7/31 Fri | Waning Gibbous | 86% | 18.0d |
| 8/1 Sat | Waning Gibbous | 79% | 19.0d |
| 8/2 Sun | Waning Gibbous | 71% | 20.0d |
| 8/3 Mon | Waning Gibbous | 62% | 21.0d |
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
- Choose your birth year, month and day, then show your Moon.
- Read the phase name and illuminated percentage. A Full Moon appears almost completely lit; a crescent shows a smaller sunlit portion.
- Select “Create my Moon card” to make 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.





