| Geyser | 1975-01-26 |
|---|---|
| Dome | 0921 ie, 1134 ie |
| Old Faithful | 0852 long, 1000 short, 1049 long, 1206 short, 1249 short, 1408 short, 1502 long, 1618 short, 1706 long |
| Vault | 0931 |
| Values for Old Faithful Area | 1975-01-26 |
|---|---|
| Astronomical Twilight Begin | 06:07 |
| Nautical Twilight Begin | 06:41 |
| Civil Twilight Begin | 07:16 |
| Sunrise | 07:48 |
| Sunset | 17:23 |
| Civil Twilight End | 17:54 |
| Nautical Twilight End | 18:30 |
| Astronomical Twilight End | 19:04 |
| Moon Illumination | 97.36% |