Astronomical observations Herndon (United States)
| Sunrise | 05 h 44 am |
|---|---|
| Transition hour | 01 h 11 pm |
| Sunset | 08 h 38 pm |
| Starting of civil twilight | 05 h 12 am |
| Termination of civil twilight | 09 h 10 pm |
| Duration of sunshine | 14 h 54 |
| Sunrise | 12 h 03 pm |
|---|---|
| Sunset | 12 h 00 am |
| Fraction illuminated | 52 % (pleine lune) |