325 Heidelberga is a large main belt asteroid that was discovered by German astronomer Max Wolf on 4 March 1892 in Heidelberg. It is orbiting the Sun at a distance of with an eccentricity (oval shape) of 0.159. The orbital plane is inclined at an angle of 8.55ð to the ecliptic.
Based upon its spectrum, 325 Heidelberga is classified as an M-type asteroid. No absorption features have been detected with certainty, indicating it most likely has a nickel-iron or enstatite chondrite composition. A weak feature in the near infrared spectrum indicates the presence of low-iron orthopyroxene on the asteroid surface.