Editing 2807 Karl Marx (section)

== Orbit and classification ==

=== Dora family ===

''Karl Marx'' is a member of the [[Dora family]] ({{small|[[FIN tbl#512|512]]}}), a well-determined [[asteroid family]] of more than 1,200 known members with a carbonaceous composition. The family's namesake is [[668&nbsp;Dora]]. It is alternatively known as the "Zhongolovich family", named after its presumably largest member [[1734&nbsp;Zhongolovich]]. The Dora family may also contain a subfamily.<ref name="Broz-2013" /><ref name="Nesvorny-2014" />{{rp|13,23}}

=== Orbit and observation arc ===

It orbits the Sun in the [[Kirkwood gap|central]] main-belt at a distance of 2.3–3.3&nbsp;[[Astronomical unit|AU]] once every 4 years and 8 months (1,707 days). Its orbit has an [[orbital eccentricity|eccentricity]] of 0.18 and an [[orbital inclination|inclination]] of 8[[Degree (angle)|°]] with respect to the [[ecliptic]].<ref name="jpldata" />

The asteroid was first identified as {{mp|1924 BE}} at [[Heidelberg Observatory]] in 1924. Its first used observation is a [[precovery]] taken at [[Palomar Observatory]] in 1954, extending the body's [[observation arc]] by 15 years prior to its official discovery observation at Nauchnyj.<ref name="MPC-Karl Marx" />