| Geyser | 1974-09-22 |
|---|---|
| Arsenic | 1615 |
| Bear Den | 0958, 1342 |
| Congress Pool | 0900-1500 |
| Constant | 1056, 1327 |
| Echinus | 0857, 1023, 1149, 1436, 1605 |
| Emerald Spring | 1800 |
| Little Whirligig | 1020, 1430 A, 1610 ie |
| Whirligig | 1133, 1331 |
| Values for Old Faithful Area | 1974-09-22 |
|---|---|
| Astronomical Twilight Begin | 05:32 |
| Nautical Twilight Begin | 06:07 |
| Civil Twilight Begin | 06:41 |
| Sunrise | 07:10 |
| Sunset | 19:21 |
| Civil Twilight End | 19:50 |
| Nautical Twilight End | 20:24 |
| Astronomical Twilight End | 20:59 |
| Moon Illumination | 39.74% |