ASA 1.5-Meter Telescope System ASA AZ1500

ASA 1.5-Meter Alt-Az Telescope System

Starting at $1,604,000

The ASA 1.5-Meter Telescope is a complete Alt-Az observatory telescope system with a 1.5-meter Ritchey-Chrétien low expansion quartz primary mirror that guarantees diffraction-limited performance and ultra low micro-roughness values even under the most perfect Earth-based astronomical seeing conditions.

A fast focal ratio offers less obstruction, higher contrast, and a more compact system.
Nasmyth design that comes standard with 2 ports on the fork arms and configurable to 4 ports.
Secondary mirror focusing unit is equipped with an absolute encoder.
Direct drive motors and ultra high-resolution encoders on each axis for zero backlash and zero periodic error.

Telescopes > ASA AZ1500

ASA 1.5-Meter Alt-Az Telescope System

Starting at $1,604,000

A fast focal ratio offers less obstruction, higher contrast, and a more compact system.
Nasmyth design that comes standard with 2 ports on the fork arms and configurable to 4 ports.
Secondary mirror focusing unit is equipped with an absolute encoder.
Direct drive motors and ultra high-resolution encoders on each axis for zero backlash and zero periodic error.

Description

The ASA ASA 1.5-Meter Telescope is a complete Alt-Az observatory telescope system with a 1.5-meter Ritchey-Chrétien low expansion quartz primary mirror that guarantees diffraction-limited performance and ultra low micro-roughness values even under the most perfect Earth-based astronomical seeing conditions.

Optical Design: Ritchey-Chrétien (RC)
Linear Central Obstruction: 43%
Focus Position: Nasmyth; 2 as standard; 4 as option
Focal Length: 9,000 mm
Focal Ratio System: f/6
Clear Aperture / Focal Ratio Primary Mirror: 1,500 mm (59.1 inch) / f/2
Image Field: 200 mm (1.27 degrees)
Mirror Material: Zerodur
Surface Quality: >94 Strehl
Micro-roughness: 1nm RMS / <0.7nm Ra
Coating: Al+SiO2 >91%
Back Focus from Flange: 513 mm
Tube Weight: 5,000 kg (11,023 lb.)
Software: ASA API (application programming interface) available Autumn 2023. ASA Software (Autoslew, Sequence-windows based) with ASCOM-Alpaca.
Pointing Accuracy (20° to 85°): <8” RMS with pointing model
Tracking Accuracy (20° to 85°): <0.25” RMS within 5 minutes tracking time over 5 min 0,05” RMS/min
System Natural Frequency: 10 Hz or greater

ASA 1.5-Meter Alt-Az Telescope System

Starting at $1,604,000

ASA 1.5-Meter Alt-Az Telescope System

Starting at $1,604,000

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