| Geyser | 1975-11-13 |
|---|---|
| Beehive | 1421 ie |
| Castle | 1445 |
| Grand | 1502 |
| Sawmill | 1502 ie |
| Spasmodic | 1502 ie |
| Uncertain | 1502 ie |
| Values for Old Faithful Area | 1975-11-13 |
|---|---|
| Astronomical Twilight Begin | 05:36 |
| Nautical Twilight Begin | 06:10 |
| Civil Twilight Begin | 06:45 |
| Sunrise | 07:16 |
| Sunset | 16:58 |
| Civil Twilight End | 17:29 |
| Nautical Twilight End | 18:04 |
| Astronomical Twilight End | 18:39 |
| Moon Illumination | 73.13% |