Sketch of Bullialdus and Surroundings
Move mouse over sketch to see labels. Click image for larger version.
Observation Notes:
The seeing was horrible on the night of this observation and I had to keep the magnification to 120X and observe wider fields. There was some very nice terrain to view in the vicinity of Bullialdus. A rippled fan ran west from Bullialdus itself. Lubiniezky appeared ghosted. Bullialdus’ walls were starkly terraced and a small bright peak emerged from its shadowed center. Some more rippling ran south from König.
| Subject | Bullialdus and Surroundings |
| Classification | Craters |
| Position | 20.7°S, 22.2°W |
| Phase/Age | 9.9 Days / 75% Illuminated |
| Size* | Bullialdus: 61 km dia x 3510 m depth König: 23 km dia x 2440 m depth Lubiniezky: 44 km dia x 770 m depth Darney: 15 km dia x 2620 m depth |
| Date/Time | AUG 29, 2009, 10:30 PM MST (AUG 30, 2009, 05:30 UT) |
| Observing Loc. | Flagstaff, AZ – Home |
| Instrument | Orion SkyQuest XT8 (203 mm dia./1200 mm F/L) |
| Eyepieces/Mag. | Pentax XW10 (120X) |
| Conditions | Partly cloudy, breezy |
| Seeing | Ant. IV |
| Sources | Atlas of the Moon by Antonín Rükl 2004; Observing the Moon by Gerald North 2000. |
* Based on published data.