| Geyser | 1980-07-28 |
|---|---|
| Arsenic | 1210 |
| Constant | 1213 |
| Corporal | 1335 ie, 1436, 1726 ie |
| Echinus | 0930, 1045, 1400 |
| Veteran | 0911:49, 1025:33, 1049 min, 1107:13, 1310, 1500:04 |
| Vixen | 1332 maj |
| Values for Old Faithful Area | 1980-07-28 |
|---|---|
| Astronomical Twilight Begin | 04:00 |
| Nautical Twilight Begin | 04:49 |
| Civil Twilight Begin | 05:32 |
| Sunrise | 06:06 |
| Sunset | 20:53 |
| Civil Twilight End | 21:26 |
| Nautical Twilight End | 22:09 |
| Astronomical Twilight End | 22:59 |
| Moon Illumination | 99.72% |