Danish 0.5-metre telescope (decommissioned)
The Danish 0.5-metre telescope was installed at La Silla in 1971, together with its twin, the ESO 0.5-metre telescope. It was equipped with a revolutionary photometer that permitted simultaneous observations in all the filters of the Strömgren system. Moreover, the telescope was fully programmable, which made it a precursor of the later automatic telescopes.
Strömgren narrow-band photometry.
Danish 0.5-metre telescope
|Name:||Danish 0.5-metre telescope|
|Optical design:||Dall Kirkham Cassegrain reflector|
|Diamater. Primary M1:||0.50 m|
|Material. Primary M1:||Low expansion Silica|
|Diameter. Secondary M2:||0.11 m|
|Material. Secondary M2:||Low expansion Silica|
|Mount:||Equatorial fork mount|
|First Light date:||2 February1969|