Observatory Robert A. Naef is an astronomical observatory located at Épendes, Canton of Fribourg, Switzerland at 7.13938 degrees east of Greenwich and 46.76236 degrees north latitude. Its parallax constants are : ρ sin φ' = 0.68632 and ρ cos φ' = +0.72501.
The observatory was named in memory of Robert Adolf Naef. The minor planet 1906 Naef was named in his honour.
Official Website https://observatoire-ependes.ch/
Address 45 Route du Petit Ependes, 1731, Switzerland
Coordinates 46°45'44.771" N 7°8'21.834" E