| Geyser | 1976-01-28 |
|---|---|
| Beehive's Indicator | 1035 ie |
| Castle | 1344 ie |
| Grand | 1337 ie |
| Old Faithful | 0902, 0953 long, 1102 short, 1215 long, 1328 short, 1416 long, 1538 short |
| Values for Old Faithful Area | 1976-01-28 |
|---|---|
| Astronomical Twilight Begin | 06:05 |
| Nautical Twilight Begin | 06:40 |
| Civil Twilight Begin | 07:15 |
| Sunrise | 07:46 |
| Sunset | 17:25 |
| Civil Twilight End | 17:57 |
| Nautical Twilight End | 18:32 |
| Astronomical Twilight End | 19:06 |
| Moon Illumination | 9.24% |