Haystack Vallis
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Haystack Vallis | |
Feature type | Vallis (crater chain) |
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Coordinates | |
Eponym | Haystack Observatory |
Haystack Vallis is a valley at 4.7° N, 46.2° W on Mercury. It superficially resembles a graben but is actually a chain of overlapping secondary craters.[1] It was named after Haystack Observatory.