My Birthday Moon
The Moon from that day, here for you now.
Thu, January 23, 2031
New Moon
A Moon with its light tucked away. Days of growing light were still ahead.
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
- Thu, January 23, 2031
- Sunlit surface
- 0%
- Lunar Date
- Lunar 1/1
Share your first sky with someone close.
Moon Phase on 23 January 2031: New Moon, 0% Lit
The Moon on January 23, 2031
On January 23, 2031, the Moon will be a New Moon, 29.4 days old and 0% illuminated, in the constellation Capricornus about 360,956 km (224,288 mi) from Earth. The New Moon will fall on this date.
- Phase
- New Moon
- Illumination
- 0%
- Moon age
- 29.4 days since New Moon
- Distance from Earth
- 360,956 km (224,288 mi)
- Constellation
- Capricornus
- Previous Full Moon
- January 8, 2031
- Next New Moon
- This date
- Next Full Moon
- February 7, 2031
Moon phases around January 23, 2031
| Date | Moon | Lit | Age |
|---|---|---|---|
| 1/20 Mon | Waning Crescent | 13% | 26.4d |
| 1/21 Tue | Waning Crescent | 6% | 27.4d |
| 1/22 Wed | Waning Crescent | 2% | 28.4d |
| 1/23 Thu | New Moon | 0% | 29.4d |
| 1/24 Fri | Waxing Crescent | 1% | 0.9d |
| 1/25 Sat | Waxing Crescent | 5% | 1.9d |
| 1/26 Sun | Waxing Crescent | 12% | 2.9d |
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
- 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 “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.