| Geyser | 1976-01-31 |
|---|---|
| Beehive | 1619 |
| Beehive's Indicator | 1600 ie |
| Grand | 1609 ie |
| Old Faithful | 0940 short, 1049 long, 1208 long, 1323 short, 1412 long, 1522 long, 1628 long |
| Values for Old Faithful Area | 1976-01-31 |
|---|---|
| Astronomical Twilight Begin | 06:03 |
| Nautical Twilight Begin | 06:37 |
| Civil Twilight Begin | 07:12 |
| Sunrise | 07:43 |
| Sunset | 17:30 |
| Civil Twilight End | 18:01 |
| Nautical Twilight End | 18:36 |
| Astronomical Twilight End | 19:10 |
| Moon Illumination | 0% |