Observations>Telescope Objects>Craters ~10 Days OldDavy on a Chain
An unremarkable impact crater with a remarkable string of craterlets (barely visible in my best image)
Observer Comments
| Target Description | Davy is a relatively small and unremarkable crater, located next to "Catena Davy", a chain of 23 craterlets in a nearly perfect straight line. "Catena" is Latin for "chain". In my best image you can see a thin line. I've included an image from Apollo 16 which shows how truly remarkable it is. According to Wikipedia, the prevailing theory is that due to tidal forces, an object broke apart as it was about to impact. This formed a chain of craterlets, one from each fragment, all lined up because the particles were all moving in the same direction at time of breakup. |
| Image Capture Description | Technically, this is the best lunar observation in this submission (at least so far). It takes advantage of the EdgeHD at full 2032mm focal length and 294 camera. This was my first experience with SharpCap's real-time lucky imaging. I had turned to it out of desperation because wildfire smoke had ruined multiple observing nights for much of the summer. Smoke turned the original image bright yellow (I converted it to grayscale). Despite the poor transparency, the combination of much longer focal length, lucky-image stacking, and wavelet sharpening delivers a much more detailed image than any of the Seestar captures. |
| Program Links | |
Capture Details
| Date and Time Observed | 2024-09-13 21:56:00 |
| Phase Age | 10.5 days |
| Lunar Phase | Waxing Gibbous |
| Illumination | 78% |
| Conditions | Transparency: Poor. Seeing: Good. |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Capture Software | SharpCap |
| Capture Type | Real-time lucky imaging with wavelet sharpening |
| Instrument | EdgeHD 8" f10-2,032mm FL |
| Camera | ASI294MC-Pro |
| Capture Details | Approximately 20 images stacked 50ms exposures |
| Post Processing | Leveled and sharpened in Affinity Photo |
