| Geyser | 1976-01-26 |
|---|---|
| Beehive | 1234 |
| Castle | 1113 |
| Grand | 0830 |
| Oblong | 1050 |
| Old Faithful | 0827 short, 0935 short, 1053 long, 1200 short, 1305 long, 1424 long, 1531 short |
| Riverside | 1310 |
| Values for Old Faithful Area | 1976-01-26 |
|---|---|
| Astronomical Twilight Begin | 06:07 |
| Nautical Twilight Begin | 06:41 |
| Civil Twilight Begin | 07:17 |
| Sunrise | 07:48 |
| Sunset | 17:23 |
| Civil Twilight End | 17:54 |
| Nautical Twilight End | 18:29 |
| Astronomical Twilight End | 19:04 |
| Moon Illumination | 25.23% |