| Geyser | 1976-10-26 |
|---|---|
| Beehive | 1121 |
| Castle | 1009 ie |
| Grand | 1251 ie |
| Great Fountain | 1400 |
| Old Faithful | 0800 short, 0909 short, 1030 long, 1138 long, 1247 short, 1405 short, 1500 long, 1613 short, 1702 short |
| Values for Old Faithful Area | 1976-10-26 |
|---|---|
| Astronomical Twilight Begin | 06:15 |
| Nautical Twilight Begin | 06:49 |
| Civil Twilight Begin | 07:23 |
| Sunrise | 07:53 |
| Sunset | 18:21 |
| Civil Twilight End | 18:51 |
| Nautical Twilight End | 19:25 |
| Astronomical Twilight End | 19:58 |
| Moon Illumination | 13.28% |