Abedin (crater) on:
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Abedin is a crater on Mercury. It was named after the 
Abedin is a crater on Mercury. It was named after the Bangladesh
Bangladesh, officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world and among the List of countries and dependencies by ...
i artist Zainul Abedin
Zainul Abedin (29 December 1914 – 28 May 1976), also known as Shilpacharya (Master of Art) was a Bangladeshi painter. He became well known in 1944 through his series of paintings depicting some of the great famines in Bengal during its Briti ...
by the IAU
The International Astronomical Union (IAU; , UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and developmen ...
in 2009.
Abedin exhibits a complex crater
Complex craters are a type of large impact crater morphology. Complex craters are classified into two groups: ''central-peak craters'' and '' peak-ring craters''. Peak-ring craters have diameters that are larger in than central-peak craters and ...
structure with a smooth floor, wall terraces, and a central peak complex. The chains of smaller craters surrounding Abedin are secondary crater
Secondary craters are impact craters formed by the ejecta that was thrown out of a larger crater. They sometimes form radial crater chains. In addition, secondary craters are often seen as clusters or rays surrounding primary craters. The study of ...
s formed by ejecta
Ejecta (; ) are particles ejected from an area. In volcanology, in particular, the term refers to particles including pyroclastic rock, pyroclastic materials (tephra) that came out of a explosive eruption, volcanic explosion and magma eruption v ...
from the initial impact. The northwestern section of Abedin's continuous ejecta blanket
An ejecta blanket is a generally symmetrical apron of ejecta that surrounds an impact crater; it is layered thickly at the crater's rim and thin to discontinuous at the blanket's outer edge.
The impact cratering is one of the basic surface format ...
appears to have a lower reflectance
The reflectance of the surface of a material is its effectiveness in reflecting radiant energy. It is the fraction of incident electromagnetic power that is reflected at the boundary. Reflectance is a component of the response of the electronic ...
than the rest of the material adjacent to the crater rim. This pattern suggests that the darker material resided at some depth beneath the northwestern portion of the pre-impact target area and was excavated and redeposited during the crater's formation.
References
Impact craters on Mercury {{Mercury-crater-stub