| Geyser | 1976-01-15 |
|---|---|
| Beehive | 1449 ie |
| Castle | 1400 ie |
| Grand | 1521 |
| Old Faithful | 0934 short, 1025 long, 1142 short, 1230 long, 1343 long, 1448 short, 1539 long |
| Values for Old Faithful Area | 1976-01-15 |
|---|---|
| Astronomical Twilight Begin | 06:13 |
| Nautical Twilight Begin | 06:48 |
| Civil Twilight Begin | 07:24 |
| Sunrise | 07:56 |
| Sunset | 17:08 |
| Civil Twilight End | 17:41 |
| Nautical Twilight End | 18:17 |
| Astronomical Twilight End | 18:51 |
| Moon Illumination | 95.59% |