Full Moon
The Full Moon occurs when the Moon reaches 180° opposition to the Sun, fully illuminating the face turned toward Earth.
- Position in cycle
- 5 of 8
- Phase Angle Range
- 180° to 225° Moon-Sun Phase Angle
- Illumination Range
- 95% to 100%
Orbital Geometry
Earth sits roughly between the Sun and Moon, allowing the entire illuminated hemisphere to face Earth.
Observational Notes
Rises near sunset, stays visible all night, and sets around sunrise.
Frequently asked questions
- How long does a Full Moon last?
- The exact peak lasts an instant, but the disk appears visually full for roughly 2–3 nights.