Asteroid 4253, Marker, was discovered on October 11, 1985 by Carolyn S. Shoemaker at Palomar Mountain Observatory. It has a period of 4 years, 88 days.
It was named for German cement factory owner/operator Wolfgang Marker, whose factory in Harburg was located on the edge of the geologically significant Ries asteroid impact crater and who has cooperated with geologists in the study of this crater.
The meaning of asteroid Marker, it has been said, is: to mark.