| Geyser | 1975-01-23 |
|---|---|
| Beehive | 1330 ie |
| Castle | 1146 |
| Old Faithful | 1007 long, 1131 long, 1242 long, 1350 long, 1454 long, 1601 long |
| Riverside | 1101 |
| Values for Old Faithful Area | 1975-01-23 |
|---|---|
| Astronomical Twilight Begin | 06:09 |
| Nautical Twilight Begin | 06:43 |
| Civil Twilight Begin | 07:19 |
| Sunrise | 07:50 |
| Sunset | 17:19 |
| Civil Twilight End | 17:51 |
| Nautical Twilight End | 18:26 |
| Astronomical Twilight End | 19:01 |
| Moon Illumination | 76.28% |