| Geyser | 1996-11-23 |
|---|---|
| Grand | 1528 |
| Grotto Fountain | 1539 ie |
| Old Faithful | 1653 |
| Plume | 1503, 1624 |
| Values for Old Faithful Area | 1996-11-23 |
|---|---|
| Astronomical Twilight Begin | 05:48 |
| Nautical Twilight Begin | 06:22 |
| Civil Twilight Begin | 06:58 |
| Sunrise | 07:30 |
| Sunset | 16:49 |
| Civil Twilight End | 17:21 |
| Nautical Twilight End | 17:57 |
| Astronomical Twilight End | 18:31 |
| Moon Illumination | 96.08% |