| Geyser | 1977-02-16 |
|---|---|
| Beehive | 1230 |
| Castle | 1324 ie |
| Fan and Mortar | 1045 ie |
| Old Faithful | 0928 short, 1043 long, 1155 short, 1243, 1359 long, 1504 long, 1624 long, 1740 long, 1855 short, 1947 long, 2115 long |
| Values for Old Faithful Area | 1977-02-16 |
|---|---|
| Astronomical Twilight Begin | 05:43 |
| Nautical Twilight Begin | 06:17 |
| Civil Twilight Begin | 06:51 |
| Sunrise | 07:21 |
| Sunset | 17:53 |
| Civil Twilight End | 18:23 |
| Nautical Twilight End | 18:57 |
| Astronomical Twilight End | 19:30 |
| Moon Illumination | 4.09% |