| Geyser | 1975-12-29 |
|---|---|
| Beehive | 0711 ie, 1714 |
| Castle | 1310 ie |
| Grand | 1202 |
| Old Faithful | 0934 short, 1038 long, 1206 short, 1242 long, 1402 short, 1453 long |
| Values for Old Faithful Area | 1975-12-29 |
|---|---|
| Astronomical Twilight Begin | 06:13 |
| Nautical Twilight Begin | 06:49 |
| Civil Twilight Begin | 07:26 |
| Sunrise | 07:59 |
| Sunset | 16:51 |
| Civil Twilight End | 17:24 |
| Nautical Twilight End | 18:01 |
| Astronomical Twilight End | 18:36 |
| Moon Illumination | 12.89% |