Haldane (lunar crater)
Template:Short description Template:About Template:Infobox Lunar crater
Haldane is a lunar impact crater that is located in Mare Smythii, near the eastern limb of the Moon. The visibility of this formation is affected by libration, and even under favorable conditions it is highly foreshortened. It lies just to the west-northwest of the crater Runge, and to the east of Carrillo. The small crater Talbot is immediately to the southwest of Haldane.
The interior of this floor has been flooded by lava, leaving only a low rim projecting up through the lunar mare. This rim is broken along the northwest face, leaving a gap into the interior. In the eastern half of the inner floor is a semi-circular feature that is concentric with the outer wall. There is also a low central ridge offset to the east of the interior midpoint.
Haldane is a somewhat extreme example of many fracture-floored craters in Mare Smythii.<ref>Motomaro Shirao, Charles A. Wood, 2011, The Kaguya Lunar Atlas: The Moon in High Resolution, Plate 6: Mare Smythii. Springer Publications</ref>
The depth of Haldane is approximately 900 m from the lowest point on the floor of its northwestern quadrant to the highest point on the southwestern part of its outer rim.<ref>LTO-81B1 Haldane, Lunar Topographic Orthophotomap (LTO) Series, Defense Mapping Agency, Scale: 1:250,000. 1973.</ref>
The crater's name was approved by the IAU in 1973.<ref>Haldane, Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN)</ref>
References
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