Haystack Catena

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Haystack Catena
Feature typeCatena
Coordinates 4°42′N46°12′W / 4.7°N 46.2°W / 4.7; -46.2 Coordinates: 4°42′N46°12′W / 4.7°N 46.2°W / 4.7; -46.2
Eponym Haystack Observatory

Haystack Catena (Haystack Vallis until March 2013) is a catena at 4.7° N, 46.2° W on Mercury. It superficially resembles a graben but is a chain of overlapping secondary craters. [1] It was named after Haystack Observatory.

Crater chain chain of craters

A crater chain is a line of craters along the surface of an astronomical body. The descriptor term for crater chains is catena, as specified by the International Astronomical Union's rules on planetary nomenclature.

Mercury (planet) Smallest and closest planet to the Sun in the Solar System

Mercury is the smallest and innermost planet in the Solar System. Its orbital period around the Sun of 87.97 days is the shortest of all the planets in the Solar System. It is named after the Roman deity Mercury, the messenger of the gods.

Graben Depressed block of planetary crust bordered by parallel faults

In geology, a graben is a depressed block of the crust of a planet bordered by parallel faults.

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