| Geyser | 1959-09-01 |
|---|---|
| Little Whirligig | 1320, 1415, 1526 |
| Splutter Pot | 1355, 1453, 1517, 1542 |
| Whirligig | 1226, 1308, 1345, 1442, 1517 |
| Values for Old Faithful Area | 1959-09-01 |
|---|---|
| Astronomical Twilight Begin | 04:01 |
| Nautical Twilight Begin | 04:39 |
| Civil Twilight Begin | 05:15 |
| Sunrise | 05:45 |
| Sunset | 19:01 |
| Civil Twilight End | 19:31 |
| Nautical Twilight End | 20:07 |
| Astronomical Twilight End | 20:45 |
| Moon Illumination | 3.8% |