Swiss 0.4-metre telescope (decommissioned)

The Swiss 0.4-metre telescope was installed at La Silla in 1975, following a convention established in 1974, in which the Council of ESO authorised the Geneva Observatory to set up a provisional observing station on La Silla. This telescope was equipped with a classical photoelectric photometer built in the Geneva Observatory, on which the seven filters of the photometric system of the Geneva Observatory were mounted. The telescope was decommissioned in March 1980, being replaced by the Swiss T70 telescope.

Science goals


Swiss 0.4-metre telescope

Name: Swiss 0.4-metre telescope
Site: La Silla
Altitude: 2375 m
Enclosure: Classical dome
Type: Photometric telescope
Optical design: Cassegrain reflector
Diameter. Primary M1: 0.40 m
Material. Primary M1: N/A
Diameter. Secondary M2: N/A
Material. Secondary M2: N/A
Mount: Equatorial mount
First Light date: 10 November 1975
Decommissioning date: Decommissioned in March 1980 and replaced by Swiss T70 telescope.
Images taken with the Swiss 0.4-metre telescope: Link
Images of the Swiss 0.4-metre telescope: Link
Videos of the Swiss 0.4-metre telescope: Link