Dunér is an old
lunar impact crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact crater ...
that is located in the northern
hemisphere
Hemisphere refers to:
* A half of a sphere
As half of the Earth
* A hemisphere of Earth
** Northern Hemisphere
** Southern Hemisphere
** Eastern Hemisphere
** Western Hemisphere
** Land and water hemispheres
* A half of the (geocentric) celes ...
on the
far side of the
Moon
The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...
. It lies to the southeast of the crater
Chernyshev, and west-southwest of the
Perkin–
Debye
The debye (symbol: D) (; ) is a CGS unit (a non- SI metric unit) of electric dipole momentTwo equal and opposite charges separated by some distance constitute an electric dipole. This dipole possesses an electric dipole moment whose value is g ...
crater pair.
This crater has been heavily battered by multiple small impacts, leaving a barely surviving outer rim that forms little more than a circular rise in the surface. The interior is in similar condition, and small craters cover many parts of the crater. The most notable impacts consist of a chain of overlapping small craters that run from near the midpoint and cross the southeastern rim. This chain is greater in length than the diameter of Dunér.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Dunér.
References
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{{DEFAULTSORT:Duner
Impact craters on the Moon