| Geyser | 1974-08-25 |
|---|---|
| Bear Den | 0918 |
| Constant | 1053, 1330 |
| Echinus | 0835, 0935, 1045, 1146, 1156, 1307, 1417, 1530, 1611, 1641 |
| Little Whirligig | 1425 |
| Porkchop | 0938 ie |
| Rubble | 1004 |
| Whirligig | 1425 |
| Values for Old Faithful Area | 1974-08-25 |
|---|---|
| Astronomical Twilight Begin | 04:50 |
| Nautical Twilight Begin | 05:30 |
| Civil Twilight Begin | 06:07 |
| Sunrise | 06:37 |
| Sunset | 20:13 |
| Civil Twilight End | 20:43 |
| Nautical Twilight End | 21:20 |
| Astronomical Twilight End | 22:00 |
| Moon Illumination | 55.93% |