| Geyser | 1972-01-16 |
|---|---|
| Giantess | 0000-2359 |
| Old Faithful | 1054 long, 1212 short, 1307 long, 1419 short, 1524 long |
| Vault | 0331, 0930 |
| Values for Old Faithful Area | 1972-01-16 |
|---|---|
| Astronomical Twilight Begin | 06:12 |
| Nautical Twilight Begin | 06:47 |
| Civil Twilight Begin | 07:23 |
| Sunrise | 07:55 |
| Sunset | 17:10 |
| Civil Twilight End | 17:42 |
| Nautical Twilight End | 18:18 |
| Astronomical Twilight End | 18:52 |
| Moon Illumination | 0.04% |