| Geyser | 1979-05-28 |
|---|---|
| Africa | 1336, 1521 |
| Arsenic | 1338 |
| Constant | 1339 |
| Echinus | 1310 ie, 1448 |
| Whirligig | 1148, 1331 |
| Values for Old Faithful Area | 1979-05-28 |
|---|---|
| Astronomical Twilight Begin | 03:27 |
| Nautical Twilight Begin | 04:23 |
| Civil Twilight Begin | 05:08 |
| Sunrise | 05:44 |
| Sunset | 20:56 |
| Civil Twilight End | 21:32 |
| Nautical Twilight End | 22:17 |
| Astronomical Twilight End | 23:13 |
| Moon Illumination | 5.43% |