| Geyser | 1981-02-18 |
|---|---|
| Africa | 0833:19, 0934:49, 1028:00 ie, 1131:01, 1221:19, 1313:21, 1405:31, 1459:55, 1553:45, 1646:42, 1747:24 |
| Values for Old Faithful Area | 1981-02-18 |
|---|---|
| Astronomical Twilight Begin | 05:40 |
| Nautical Twilight Begin | 06:14 |
| Civil Twilight Begin | 06:48 |
| Sunrise | 07:18 |
| Sunset | 17:56 |
| Civil Twilight End | 18:25 |
| Nautical Twilight End | 18:59 |
| Astronomical Twilight End | 19:33 |
| Moon Illumination | 99.54% |