Estimates for the orbital period of the comet have varied from 512 ± 105 years (Kreutz's classical work from 1901),[1] 654 ± 103 years (Chodas2008 unforced solution),[1] 688 years (JPL Horizons barycentric epoch 1852 solution), and 742 years (Chodas2008 forced solution based on a presumed identity with X/1106 C1).[1] But the comet was only observed over a period of 45 days from March 5 to April 19, and the uncertainties mean it likely has an orbital period of 600 to 800 years.[1]