3.6m Telescope

3.6m Telescope:

The 3.6m telescope was commissioned in 1977. It has a horseshoe/fork mounting.
It was designed with interchangeable top-units allowing change over of secondaries to go from prime to Cassegrain or Coude focus. An f/35 wobbling secondary unit is available for infrared work. In principle, the CES is fed from the 3.6m by an optical fibre; however, this option is at present not available.

360
		LOCATION	70°43'46.606"W 29°15'25.814"S 2400 m.
		DIAMETER	357 cm.
		MOUNT	Horseshoe and Fork
		WEIGHT	Pedestal (fixed part): 45 tons
			Polar axis: 130 tons
			Telescope "tube": 70 tons
			Total (moving part): 200 tons
		OPTICAL DESIGN	Ritchey-Chretient
		OPERATING SINCE	1977
MODES	FOCAL	SCALE	GUIDE PROBE	CENTER FIELD	INSTRUMENTATION
CASSEGRAIN	8.09 35	7.12 "/mm 1.65 "/mm	1'x 1.3' 3.2 mm/arcsec	3'x 2.5' 48 mm/arcmin	ADONIS CASPEC CES EFOSC TIMMI