| Geyser | 1986-05-10 |
|---|---|
| Fantail | 0253, 1128:42, 1849:34 |
| Veteran | 1116, 1131, 1143, 1158, 1212, 1235, 1245, 1249, 1302, 1319, 1334, 1401, 1416, 1437, 1443, 1504, 1516, 1536, 1554, 1609, 1622 |
| Values for Old Faithful Area | 1986-05-10 |
|---|---|
| Astronomical Twilight Begin | 03:59 |
| Nautical Twilight Begin | 04:46 |
| Civil Twilight Begin | 05:28 |
| Sunrise | 06:01 |
| Sunset | 20:37 |
| Civil Twilight End | 21:11 |
| Nautical Twilight End | 21:52 |
| Astronomical Twilight End | 22:40 |
| Moon Illumination | 1.61% |