| Geyser | 1973-01-15 |
|---|---|
| Beehive | 1136 |
| Grand | 1135 ie |
| Old Faithful | 0905 long, 1013 short, 1107 long, 1216 long, 1328 short, 1421 long, 1533 short, 1623 long |
| Values for Old Faithful Area | 1973-01-15 |
|---|---|
| Astronomical Twilight Begin | 06:13 |
| Nautical Twilight Begin | 06:47 |
| Civil Twilight Begin | 07:23 |
| Sunrise | 07:56 |
| Sunset | 17:09 |
| Civil Twilight End | 17:41 |
| Nautical Twilight End | 18:17 |
| Astronomical Twilight End | 18:52 |
| Moon Illumination | 82.55% |