These appointments were apparently merely a device for establishing Aepinus, who had begun to acquire a reputation, in Frederick's capital: he was neither especially interested nor experienced in astronomy, and his closest published approach to the subject during his Berlin sojourn was a mathematical analysis of a micrometer adapted to a quadrant circle.
Ang mga pakikipagtipan ay apparently lamang ng isang aparato para sa pagtatatag ng Aepinus, na sinimulan para makakuha ng isang mabuting pangalan, sa Frederick's capital: siya ay maging lalo na interesado o karanasan sa astronomy, at ang kanyang closest nai-publish sa ang paksa sa panahon ng kanyang pagbabakasyon Berlin ay isang matematikal na pagsusuri ng isang mikron iniangkop sa isang kuwadrante bilog.