Waning · 87.5% lit · ♈︎ Aries 09°
Moon age
17.5days
Moon phase on August 21, 1978Waning Gibbous
On Monday, August 21, 1978, the Moon was a Waning Gibbous: 87.5% of its visible face lit, 17.5 days after the new moon and shrinking each night.
87.5%Illumination at noon UTC
17.5 dMoon age
373,593 km232,140 mi from Earth
♈︎ AriesMoon sign (10°)
32.0′Apparent size (arcmin)
WaningLit on the left (N. Hemisphere)
Nearest moon phases
The nearest full moon to August 21, 1978 is on Friday, August 18, 1978 at 10:14 UTC, 3 days earlier, and the nearest new moon is on Saturday, September 2, 1978 at 16:09 UTC, 12 days later.
| Phase | Date | Time (UTC) |
|---|---|---|
| Full Moon (before) | Friday, August 18, 1978 | 10:14 |
| Last Quarter (after) | Friday, August 25, 1978 | 12:18 |
The Moon around August 21
More about this date
Monday, August 21, 1978 falls in the lunar cycle that runs from the new moon of August 4, 1978 to the new moon of September 2, 1978, a cycle of 29.63 days.
- See every phase of the month in the moon phases in August 1978, or the whole moon calendar 1978.
- The same date one year apart: 1977 · 1979.
- Born on this day? The moon phase on your birthday tool adds your birth time and your moon sign.
- Phases change by time zone: this page uses Coordinated Universal Time (UTC). Learn how to read the phases of the moon.