Instruments (refractors): from 26.10.1958 to 03.01.1981: FL 225 cm ( Halle H/alfa filter) from 05.01.1981 to 15.10.1984: FL 186 cm ( Zeiss H/alfa filter) Time: CET from 26.10.1958 to 27.03.1981 UT from 03.04.1981 to 15.10.1984 Go to the list of Hα images
