| Geyser | 1973-01-27 |
|---|---|
| Beehive | 1439 |
| Castle | 1145 ie |
| Grand | 1555 ie |
| Old Faithful | 0820 long, 0921 long, 1028 long, 1133 short, 1220 long, 1327 long, 1443 long, 1549 short, 1639 long |
| Values for Old Faithful Area | 1973-01-27 |
|---|---|
| Astronomical Twilight Begin | 06:06 |
| Nautical Twilight Begin | 06:40 |
| Civil Twilight Begin | 07:15 |
| Sunrise | 07:46 |
| Sunset | 17:25 |
| Civil Twilight End | 17:56 |
| Nautical Twilight End | 18:31 |
| Astronomical Twilight End | 19:06 |
| Moon Illumination | 40.35% |