There is an irregular depression next to the central peak complex of Hauptmann, making it a pit-floor crater. The depression may be caused by explosive volcanism.[3]
Hauptmann is south of Kālidāsā crater and northwest of Milton. A dark spot of low reflectance material (LRM) is present to the southwest of Hauptmann.
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Hauptmann at low sun angle
Hauptmann at a high sun angle, showing differences in albedo
^Gillis-Davis, Jeffrey J.; Blewett, David T.; Gaskell, Robert W.; Denevi, Brett W.; Robinson, Mark S.; Strom, Robert G.; Solomon, Sean C.; Sprague, Ann L. (2009). "Pit-floor craters on Mercury: Evidence of near-surface igneous activity". Earth and Planetary Science Letters. 285 (3–4): 243–250. Bibcode:2009E&PSL.285..243G. doi:10.1016/j.epsl.2009.05.023.