ASA 1-Meter Equatorial Telescope

Starting at $678,000

The ASA 1-Meter Equatorial Telescope is a complete equatorial observatory telescope system with a 1-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.
  • 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.

ASA 1-Meter Equatorial Telescope

Starting at $678,000

The ASA 1-Meter Equatorial Telescope is a complete equatorial observatory telescope system with a 1-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.
  • 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.

The ASA 1-Meter Equatorial Telescope is a complete equatorial observatory telescope system with a 1-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: 35%
  • Focus Position: Cassegrain
  • Focal Length: 6,760 mm
  • Focal Ratio System: f/6.75
  • Clear Aperture / Focal Ratio Primary Mirror: 1,000 mm (39.4 inch) / f/2
  • Image Field: 150 mm (1.27 degrees)
  • Mirror Material: Fused Silica
  • Surface Quality: >94 Strehl
  • Microroughness: 1nm RMS / <0.7nm Ra
  • Coating: Al+SiO2 >96%
  • Back Focus from Flange: 316.6 mm
  • Tube Weight: 2,100 kg (4,630 lb.)
  • Software: ASA API (application programming interface) available Autumn 2023. ASA Software (Autoslew, Sequence-windows based) with ASCOM-Alpaca.
  • Max Slew Speed: Up to 50 degrees per second
  • 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

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