| Geyser | 1952-09-29 |
|---|---|
| Whirligig | 1310, 1521 |
| Values for Old Faithful Area | 1952-09-29 |
|---|---|
| Astronomical Twilight Begin | 04:42 |
| Nautical Twilight Begin | 05:16 |
| Civil Twilight Begin | 05:50 |
| Sunrise | 06:19 |
| Sunset | 18:08 |
| Civil Twilight End | 18:36 |
| Nautical Twilight End | 19:10 |
| Astronomical Twilight End | 19:44 |
| Moon Illumination | 76.52% |