| Geyser | 1973-02-27 |
|---|---|
| Beehive | 1621 |
| Castle | 1520 |
| Old Faithful | 0847 long, 0958 short, 1050 long, 1201 long, 1307 short, 1400 long, 1520 long, 1624 long |
| Riverside | 1210 |
| Values for Old Faithful Area | 1973-02-27 |
|---|---|
| Astronomical Twilight Begin | 05:27 |
| Nautical Twilight Begin | 06:00 |
| Civil Twilight Begin | 06:34 |
| Sunrise | 07:03 |
| Sunset | 18:08 |
| Civil Twilight End | 18:37 |
| Nautical Twilight End | 19:11 |
| Astronomical Twilight End | 19:45 |
| Moon Illumination | 30.24% |