Original Name of the Istrument Observatory Time Zone Zeiss Double Wide-angle Astrograph (Zelenchuk) Archives:EAO040B, KAO040Z, KAO040K North Caucasian astronomical station of the Kazan university Zelenchuk Russia 3 East Long./ Latitude/ Altitude(m)  Tubes/Focuses  Clear Aperture Mirror Diameter (m) Focus(m)/ Scale("/mm)/ FieldSize [deg] Years of Oper. 41 26 43 39 2047 tube A tube B 0.4 0.4 2 103.16 8.6 2 103.16 8.6 1982- 1993

L.Pakuliak. Questions, remarks and propositions are welcome.