| Geyser | 1976-01-07 |
|---|---|
| Beehive | 1043 |
| Old Faithful | 0938 long, 1101 long, 1225 short, 1322 long, 1431 short, 1517 long |
| Riverside | 1520 |
| Values for Old Faithful Area | 1976-01-07 |
|---|---|
| Astronomical Twilight Begin | 06:14 |
| Nautical Twilight Begin | 06:50 |
| Civil Twilight Begin | 07:26 |
| Sunrise | 07:59 |
| Sunset | 16:59 |
| Civil Twilight End | 17:32 |
| Nautical Twilight End | 18:08 |
| Astronomical Twilight End | 18:44 |
| Moon Illumination | 29.51% |