| Geyser | 1977-01-16 |
|---|---|
| Lion | 1015 |
| Old Faithful | 0845, 1004 long, 1115, 1234 long, 1342 long, 1502 long, 1605 long, 1722 short, 1819 long |
| Values for Old Faithful Area | 1977-01-16 |
|---|---|
| Astronomical Twilight Begin | 06:12 |
| Nautical Twilight Begin | 06:47 |
| Civil Twilight Begin | 07:23 |
| Sunrise | 07:55 |
| Sunset | 17:10 |
| Civil Twilight End | 17:43 |
| Nautical Twilight End | 18:19 |
| Astronomical Twilight End | 18:53 |
| Moon Illumination | 14.07% |