| Geyser | 1974-12-18 |
|---|---|
| Beehive | 1053 |
| Castle | 1015 ie, 1830 ie |
| Old Faithful | 0927 long, 1050 long, 1202 short, 1255 long, 1416 long, 1521 long, 1644 short, 1721 long, 1841 short, 1936 long, 2057 short |
| Round | 1558 |
| Values for Old Faithful Area | 1974-12-18 |
|---|---|
| Astronomical Twilight Begin | 06:09 |
| Nautical Twilight Begin | 06:44 |
| Civil Twilight Begin | 07:21 |
| Sunrise | 07:54 |
| Sunset | 16:45 |
| Civil Twilight End | 17:18 |
| Nautical Twilight End | 17:55 |
| Astronomical Twilight End | 18:30 |
| Moon Illumination | 19.07% |