| Geyser | 1976-02-20 |
|---|---|
| Beehive | 1152 |
| Beehive's Indicator | 1138 |
| Depression | 1520 |
| Old Faithful | 0847 short, 0927 long, 1046 short, 1138 long, 1248 short, 1352 long, 1508 long |
| Values for Old Faithful Area | 1976-02-20 |
|---|---|
| Astronomical Twilight Begin | 05:39 |
| Nautical Twilight Begin | 06:12 |
| Civil Twilight Begin | 06:46 |
| Sunrise | 07:16 |
| Sunset | 17:58 |
| Civil Twilight End | 18:27 |
| Nautical Twilight End | 19:01 |
| Astronomical Twilight End | 19:35 |
| Moon Illumination | 72.61% |