He had for some time been creating a major star catalogue and by 1796 it contained 30,000 stars and by this stage had, in fact, achieved his original aim. However he continued with the task and by 1797 his star catalogue listed 41,000 stars.
Niya para sa ilang oras na ang paglikha ng isang malaking bituin katalogo at sa pamamagitan ng 1,796 ito ay naglalaman 30,000 stars at sa pamamagitan ng hakbang na ito ay, sa katunayan, makakamtan sa kanyang orihinal na layunin.