The observatory is located in 14th district of Paris.
2°20 ’ East
Latitude: 48°50 ’ North
Avenue Denfert-Rochereau, 75014 Paris
Going there :
By Bus: line 38, 83 or 91 stop(ruling) Observatoire-Port Royal
By Subway: stations Port Royal or Denfert-Rochereau. You can see these stationson a map
From the airport of Roissy Charles de Gaulle: take the RER B to Denfert Rochereau