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Moon Features
What to look for through the telescope
- Recommended eyepiece: 26mm or 40mm
Other Features Information
- Other unusual and interesting lunar features.
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Altai Scarp
| Longitude | 22° E | Best Seen | 5-day old moon |
| Latitude | 28° S | ||
Altai Scarp Feature Information
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Height: averages 1 mile, but rises to 2.5 miles in some places
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This is a gigantic irregular cliff with its lower side on the Mare Nectaris side.
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Serpentine Ridge
| Longitude | 25° E | Best Seen | 5-day old moon |
| Latitude | 25° N | Length | 250 miles |
Serpentine Ridge Feature Information
- This irregular line meanders 250 miles across Mare Serenitatis. The ridge rises as high as 1000 feet in some places, but that is very small compared to its seven-mile width. This is a good example of lunar wrinkles or ridges.
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Straight Wall
| Longitude | 8° W | Best Seen | 9-day old moon |
| Latitude | 22° S | Length | 70 miles |
Straight Wall Feature Information
- This is a straight ridge about 70 miles long. The eastern ground is in some places about 1200 feet higher that the western. It can only be seen because of its shadow. The ridge is not vertical but rises with an angle of about 40 degrees. This is perhaps one of the steepest slopes on the moon.
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