| Geyser | 1974-07-26 |
|---|---|
| Africa | 1800 |
| Constant | 1129, 1345, 1353, 1446, 1450, 1605 |
| Echinus | 0944, 1103, 1225 |
| Ledge | 1445, 2005 |
| Little Whirligig | 1423 |
| Valentine | 1345 |
| Whirligig | 1348, 1505, 1541 |
| Values for Old Faithful Area | 1974-07-26 |
|---|---|
| Astronomical Twilight Begin | 03:55 |
| Nautical Twilight Begin | 04:46 |
| Civil Twilight Begin | 05:29 |
| Sunrise | 06:03 |
| Sunset | 20:55 |
| Civil Twilight End | 21:29 |
| Nautical Twilight End | 22:13 |
| Astronomical Twilight End | 23:04 |
| Moon Illumination | 50.86% |