J.Herschel est une plaine murée de 156 Km, profonde de 1300 m et situé prés du limbe Nord Nord-Ouest de la Lune. Au Nord on trouve le cratère irrégulier Anaximander (68 Km, 2800 m). La muraille de J.Herschel est très érodé et ne comporte plus que des collines éparses chevauchées par Horrebow (25 Km, 2500 m) et Horrebow A au Sud. Le fond plat est accidenté, avec de nombreux monticules et craterlets.

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J. Herschel is large lunar crater of the variety termed a walled-plain. It is located in the northern part of the Moon's surface, and so appears foreshortened when viewed from the Earth. The southeastern rim of J. Hershel forms part of the edge of the Mare Frigoris lunar mare. To the northwest is Anaximander crater. Bordering the northern rim is a large, unnamed lunar plain. Just to the south is the small Horrebow crater.

The rim of this crater has been heavily eroded, to the point where it is frequently described as "considerably disintegrated". The remaining rim survives as a ring of ridges that have been resculpted by subsequent impacts. The interior floor is relatively level, but irregular and marked by a multitude of tiny impacts. The most notable of these are the satellite craters C, G, K, and L, listed in the table below. 'J. Herschel A' is attached to the southern rim of the crater, and is overlapped along its southeast rim by Horrebow.