800 Kressmannia is an S-type asteroid<sup>https://web.archive.org/web/20090805185511/http://www.psi.edu/pds/resource/taxonomy.html</sup> belonging to the Flora family in the Main Belt. Its rotation period is 4.464 hours<sup>https://web.archive.org/web/20060614093519/http://www.psi.edu/pds/archive/lc.html</sup>.