Janssen is an ancient impact crater located in the highland region near the southeastern lunar limb . The entire structure has been heavily worn and is marked by many lesser crater impacts. The outer wall is breached in multiple locations, but the outline of the crater rim can still be observed. The wall forms a distinctive hexagonal shape upon the rugged lunar surface, with a slight curvature at the vertices .
5-402: Janssen may refer to: Astronomy [ edit ] Janssen (lunar crater) Janssen (Martian crater) Janssen (planet) , an exoplanet also known as 55 Cancri e Other [ edit ] Janssen (surname) is a common Dutch surname, cognate of "Johnson" Janssen Biotech , American biotechnology company Janssen COVID-19 vaccine ,
10-454: A COVID-19 vaccine Janssen Pharmaceuticals , a Belgian company USS Janssen (DE-396) , World War II US Navy destroyer escort E. Janssen Building , a historic building in Eureka, California See also [ edit ] Jansen (disambiguation) Janssens Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with
15-423: Is named after French astronomer Pierre Jules César Janssen . The prominent crater Fabricius lies entirely within the outer wall, in the northeast quadrant of the floor. A number of other lesser, but still notable craters mark the crater floor. Connected to the northeast rim is Metius , and to the north is the heavily worn Brenner . Southeast of Janssen are the co-joined craters Steinheil and Watt . Astride
20-480: The southwest wall is the smaller Lockyer . Further to the east, although appearing nearby due to elongation, is the huge Vallis Rheita . In the southern two-thirds of Janssen can be discerned the remains of a large, concentric crater, the wall of which is overlaid by Fabricius. The floor of this inner depression contains a rille system named the Rimae Janssen. The rille curves from the rim of Fabricius to
25-466: The title Janssen . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Janssen&oldid=1089546926 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Janssen (lunar crater) The crater
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