| Geyser | 1975-12-06 |
|---|---|
| Beehive | 1338 |
| Old Faithful | 1121 long, 1226 short, 1335 short, 1453 long, 1559 short, 1710 short |
| Values for Old Faithful Area | 1975-12-06 |
|---|---|
| Astronomical Twilight Begin | 06:00 |
| Nautical Twilight Begin | 06:35 |
| Civil Twilight Begin | 07:11 |
| Sunrise | 07:44 |
| Sunset | 16:44 |
| Civil Twilight End | 17:16 |
| Nautical Twilight End | 17:53 |
| Astronomical Twilight End | 18:28 |
| Moon Illumination | 12.36% |