Observations>Telescope Objects>Research Best TimeRupes Altai: an Escarpment
The most prominent lunar escarpment.
Observer Comments
| Target Description | Rupes Altai is the most prominent lunar escarpment. What's an escarpment? It's a slope formed due to faulting or erosion. In this case it extends nearly 480km.
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| Image Capture Description | This was an unexpected break... the weather forecast was for clouds, and earlier in the evening it had been clouded over. But as I was turning off the lights to go to bed, I discovered it was clear. So, out came the Seastar, and I was able to capture it almost precisely at Quarter Moon. |
| Program Links | |
Capture Details
| Date and Time Observed | 2025-04-04 22:45:00 |
| Phase Age | 6.8 days |
| Lunar Phase | First Quarter |
| Illumination | 50% |
| Conditions | Transparency: Good. Seeing: Good. |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Capture Software | Seestar |
| Capture Type | Single-image |
| Instrument | Seestar S50 f5.0-250mm FL |
| Camera | Seestar Built-in SONY IMX462 Sensor |
| Capture Details | Auto capture |
| Post Processing | Levels adjusted in Affinity Photo |
