| Geyser | 1975-12-20 |
|---|---|
| Beehive | 1504 |
| Beehive's Indicator | 1045 ie, 1501 |
| Castle | 1139 min |
| Depression | 1522 |
| Grand | 1106 |
| Old Faithful | 0825 long, 0940 short, 1028 short, 1143 short, 1242 long, 1354 short, 1452 long |
| Values for Old Faithful Area | 1975-12-20 |
|---|---|
| Astronomical Twilight Begin | 06:10 |
| Nautical Twilight Begin | 06:45 |
| Civil Twilight Begin | 07:22 |
| Sunrise | 07:55 |
| Sunset | 16:45 |
| Civil Twilight End | 17:19 |
| Nautical Twilight End | 17:56 |
| Astronomical Twilight End | 18:31 |
| Moon Illumination | 96.72% |