| Geyser | 1975-04-02 |
|---|---|
| Beehive | 1638 |
| Old Faithful | 1535 ie short, 1616 long, 1734 short, 1830 long, 1948 long, 2057 short, 2148 long, 2302 long |
| Values for Old Faithful Area | 1975-04-02 |
|---|---|
| Astronomical Twilight Begin | 05:21 |
| Nautical Twilight Begin | 05:58 |
| Civil Twilight Begin | 06:33 |
| Sunrise | 07:02 |
| Sunset | 19:51 |
| Civil Twilight End | 20:20 |
| Nautical Twilight End | 20:55 |
| Astronomical Twilight End | 21:32 |
| Moon Illumination | 62.65% |