| Geyser | 1969-07-01 |
|---|---|
| Arsenic | 1220 |
| Ebony | 0940 |
| Echinus | 0910, 1052, 1140, 1240, 1420, 1605 |
| Ledge | 0100 |
| Little Whirligig | 0930, 1220, 1730 |
| Values for Old Faithful Area | 1969-07-01 |
|---|---|
| Astronomical Twilight Begin | 03:16 |
| Nautical Twilight Begin | 04:17 |
| Civil Twilight Begin | 05:06 |
| Sunrise | 05:42 |
| Sunset | 21:11 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:38 |
| Moon Illumination | 96.94% |