| Geyser | 1972-09-29 |
|---|---|
| Beehive | 1408 |
| Depression | 1158 |
| Echinus | 1021 |
| Grand | 1245 |
| Great Fountain | 1315 |
| Old Faithful | 0806 short, 0913 long, 1022 short, 1132 long, 1240 long, 1355 long, 1502, 1610 short, 1659 long |
| Values for Old Faithful Area | 1972-09-29 |
|---|---|
| Astronomical Twilight Begin | 05:42 |
| Nautical Twilight Begin | 06:16 |
| Civil Twilight Begin | 06:50 |
| Sunrise | 07:19 |
| Sunset | 19:07 |
| Civil Twilight End | 19:36 |
| Nautical Twilight End | 20:10 |
| Astronomical Twilight End | 20:44 |
| Moon Illumination | 56.4% |