| Geyser | 1973-02-11 |
|---|---|
| Old Faithful | 0846 long, 1006 long, 1117 long, 1230 long, 1345 long, 1456 long, 1602 long |
| Values for Old Faithful Area | 1973-02-11 |
|---|---|
| Astronomical Twilight Begin | 05:50 |
| Nautical Twilight Begin | 06:24 |
| Civil Twilight Begin | 06:58 |
| Sunrise | 07:28 |
| Sunset | 17:46 |
| Civil Twilight End | 18:16 |
| Nautical Twilight End | 18:50 |
| Astronomical Twilight End | 19:24 |
| Moon Illumination | 58% |