| Geyser | 1990-03-21 |
|---|---|
| Cats Eye Spring | 1200 |
| Incline | 1133:04, 1150:25, 1204:29, 1219:49, 1235:07, 1251:27, 1306:31, 1320:37, 1335:14, 1350:14, 1404:20, 1418:45, 1559:11, 1613:38, 1628:00 |
| Puff-n-Stuff | 1200 |
| Values for Old Faithful Area | 1990-03-21 |
|---|---|
| Astronomical Twilight Begin | 04:46 |
| Nautical Twilight Begin | 05:21 |
| Civil Twilight Begin | 05:55 |
| Sunrise | 06:24 |
| Sunset | 18:36 |
| Civil Twilight End | 19:05 |
| Nautical Twilight End | 19:39 |
| Astronomical Twilight End | 20:14 |
| Moon Illumination | 33.63% |