The Moon on this date is New Moon, with about 0% of its disk illuminated.
Moonrise and moonset are for Seoul. Moonset is when the Moon that rose this day sets, so it can fall on the next day.
A day when Venus keeps the Moon company.
Difficult to see together at night from Seoul.
The Moon and Venus appear close together in our sky; they are not physically close.
Closest approach 12/20, 01:34 KST · 4.9° geocentric separation
Seoul estimate · Korea Standard Time (KST)
No nighttime viewing window meets our criteria in Seoul on this date.
Clouds and light pollution affect actual visibility.
On December 20, 2025, the Moon was a New Moon, 0.1 days old and 0% illuminated, in the constellation Sagittarius about 403,383 km (250,650 mi) from Earth. The New Moon fell on this date.
| Date | Moon | Lit | Age |
|---|---|---|---|
| 12/17 Wed | Waning Crescent | 8% | 26.8d |
| 12/18 Thu | Waning Crescent | 4% | 27.8d |
| 12/19 Fri | Waning Crescent | 1% | 28.8d |
| 12/20 Sat | New Moon | 0% | 0.1d |
| 12/21 Sun | Waxing Crescent | 1% | 1.1d |
| 12/22 Mon | Waxing Crescent | 4% | 2.1d |
| 12/23 Tue | Waxing Crescent | 9% | 3.1d |
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.
