| Geyser | 1976-12-24 |
|---|---|
| Castle | 0900 ie |
| Dome | 0000-1200 |
| Giantess | 0845 |
| Oblong | 1230 |
| Old Faithful | 0931 long, 1043 short, 1140 long, 1257 short, 1338 long, 1454 short, 1602 long |
| Riverside | 1215 |
| Vault | 0922 |
| Values for Old Faithful Area | 1976-12-24 |
|---|---|
| Astronomical Twilight Begin | 06:12 |
| Nautical Twilight Begin | 06:47 |
| Civil Twilight Begin | 07:24 |
| Sunrise | 07:58 |
| Sunset | 16:48 |
| Civil Twilight End | 17:21 |
| Nautical Twilight End | 17:58 |
| Astronomical Twilight End | 18:33 |
| Moon Illumination | 13.17% |