| Geyser | 1974-12-21 |
|---|---|
| Beehive | 1511 |
| Castle | 0910 ie |
| Dome | 1150, 1256 |
| Old Faithful | 0813 short, 0925 long, 1034 short, 1124 long, 1244 short, 1334 long, 1445 long, 1558 short, 1717 long |
| Values for Old Faithful Area | 1974-12-21 |
|---|---|
| Astronomical Twilight Begin | 06:10 |
| Nautical Twilight Begin | 06:46 |
| Civil Twilight Begin | 07:23 |
| Sunrise | 07:56 |
| Sunset | 16:46 |
| Civil Twilight End | 17:19 |
| Nautical Twilight End | 17:56 |
| Astronomical Twilight End | 18:32 |
| Moon Illumination | 45% |