| Geyser | 1986-04-27 |
|---|---|
| Vixen | 1228, 1231, 1236, 1240, 1242, 1243, 1244, 1250, 1252, 1254, 1259, 1311, 1316, 1320, 1326, 1329, 1341, 1343, 1344, 1346, 1348, 1351, 1358, 1359, 1405 |
| Values for Old Faithful Area | 1986-04-27 |
|---|---|
| Astronomical Twilight Begin | 04:26 |
| Nautical Twilight Begin | 05:09 |
| Civil Twilight Begin | 05:48 |
| Sunrise | 06:19 |
| Sunset | 20:22 |
| Civil Twilight End | 20:53 |
| Nautical Twilight End | 21:32 |
| Astronomical Twilight End | 22:15 |
| Moon Illumination | 88.94% |