| Geyser | 1985-08-19 |
|---|---|
| Arsenic | 1358 |
| Bear Den | 0650 ie, 1150, 1516, 2022, 2100 |
| Constant | 1100 A, 1234, 1431, 1634 |
| Fireball | 1200 ie, 1340, 1545 |
| Pinto | 1800 |
| Splutter Pot | 1345, 1350, 1357, 1409, 1414, 1427, 1555, 1601, 1606, 1612, 1624, 1628, 1639 |
| Steamvalve Spring | 0949, 1317, 1712, 1800, 1800, 1800, 2101 |
| Whirligig | 0615 A, 0845 A, 1120 A, 1355, 1624 |
| Values for Old Faithful Area | 1985-08-19 |
|---|---|
| Astronomical Twilight Begin | 04:40 |
| Nautical Twilight Begin | 05:22 |
| Civil Twilight Begin | 06:00 |
| Sunrise | 06:31 |
| Sunset | 20:22 |
| Civil Twilight End | 20:53 |
| Nautical Twilight End | 21:31 |
| Astronomical Twilight End | 22:12 |
| Moon Illumination | 10.35% |