1780 Kippes, provisional designation A906 RA, is an Eoan asteroid from the outer regions of the asteroid belt, approximately 28 kilometers in diameter. It was discovered on 12 September 1906, by astronomer August Kopff at the Heidelberg-Königstuhl State Observatory in southwest Germany.^[12] The asteroid was named after German Catholic priest and amateur astronomer Otto Kippes.^[2]

Kippes is a member the Eos family (606), the largest asteroid family of the outer main belt consisting of nearly 10,000 asteroids.^{[3][4][13]: 23} It orbits the Sun in the outer main-belt at a distance of 2.9–3.2 AU once every 5 years and 3 months (1,914 days). Its orbit has an eccentricity of 0.05 and an inclination of 9° with respect to the ecliptic.^[1]

The body's observation arc begins at Heidelberg in 1906, one week after its official discovery observation.^[12]

Kippes is an assumed S-type asteroid,^[3] while the overall spectral type of the Eos family is that of a K-type.^[13]: 23

This minor planet was named after German Catholic priest and amateur astronomer Otto Kippes (1905–1994). He was a precise observer, acknowledged for his orbit calculations and identifications of hundreds of minor planets in widely separated oppositions.^[2][14] The official naming citation was published by the Minor Planet Center on 15 June 1973 (M.P.C. 3508).^[15]