| Geyser | 1977-01-27 |
|---|---|
| Beehive | 1115 ie |
| Grand | 1127 |
| Old Faithful | 0926, 1030 long, 1145 long, 1308 long, 1427 long, 1536 long, 1705 long |
| Values for Old Faithful Area | 1977-01-27 |
|---|---|
| Astronomical Twilight Begin | 06:06 |
| Nautical Twilight Begin | 06:40 |
| Civil Twilight Begin | 07:15 |
| Sunrise | 07:46 |
| Sunset | 17:25 |
| Civil Twilight End | 17:56 |
| Nautical Twilight End | 18:32 |
| Astronomical Twilight End | 19:06 |
| Moon Illumination | 50.68% |