Moonlight calculator
Estimated horizontal moonlight at 2 November 2026 at 21:00 GMT: 0.0000 lux.
- Phase
- Last Quarter
- Illumination
- 38.83%
- Lunar age
- 23.215 days
- Phase angle
- 283.05°
- Earth–Moon distance
- 376,077 km
- Brown lunation
- 1284
- Apparent diameter
- 31.58 arcminutes
- Coordinates
- 51.5074°, -0.1278°
- Altitude
- -19.57°
- True-north bearing
- 32.03°
- Right ascension
- 9.751 hours
- Declination
- 13.11°
The estimate uses 0.267 lux for a full Moon at 384,400 km overhead before extinction, scales with inverse-square distance, lunar phase darkening and the sine of altitude, and dims by the chosen extinction. It describes horizontal illumination under clear air, without cloud or terrain.