Celestron RASA 11 on CGX-L Equatorial Mount

Celestron CGX-L RASA

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Celestron RASA 11 on CGX-L Equatorial Mount

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Available from external stock, delivery in two to three working days.

7'799.00 CHF tax incl.

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Celestron RASA 11 on CGX-L Equatorial Mount

DESCRIPTION

The Celestron RASA 11 is a wide-field astrograph optimized for high-speed deep-sky imaging. It features a 620 mm focal length and a 43.3 mm optimized image circle, suitable for full-frame sensors. Its rare-earth 4-element optical group ensures perfect correction of coma, curvature, and chromatic aberration.

The Ultra-Stable Focus System with linear ball bearing suppresses image shift and mirror flop. A MagLev fan enhances cooldown with filtered airflow. The system includes M42 and M48 camera adapters and a multicoated optical window.

The CGX-L equatorial mount supports 75 lbs and features 144 mm worm wheels, dual dovetail saddles (CG-5/CGE), integrated PEC, and remote-friendly design. It supports CPWI, SkyPortal, ASCOM, and is ideal for observatories or mobile dark-sky imaging setups.

TECHNICAL SPECIFICATIONS

RASA 11 V2 Optical Tube

  • Optical Design: Rowe-Ackermann Schmidt Astrograph

  • Aperture: 279 mm

  • Focal Length: 620 mm

  • Focal Ratio: f/2.2

  • Central Obstruction: 114 mm (41%)

  • Optimized Image Circle: 43.3 mm (4.0°)

  • Usable Field: 52 mm (4.8°)

  • Rayleigh Resolution: 0.49 arcsec

  • Dawes Resolution: 0.41 arcsec

  • Spot Size RMS: < 4.4 μm

  • Spectral Range: 400 – 700 nm

  • Off-axis Transmission (21 mm): 83%

  • Back Focus with Adapter: 55 mm

  • Back Focus from Threaded Collar: 72.8 mm

  • Optical Window: 68 mm fully multi-coated

  • Focuser: Ultra-Stable Focus System

  • Cooling: MagLev fan, 12V battery included

  • Tube: Aluminum, Ø 330 mm, Length 838 mm

  • Tube Weight: 19.5 kg (43 lbs)

  • Dovetail: CGE (dual position)

CGX-L Mount

  • Mount Type: Computerized Equatorial GoTo

  • Payload Capacity: 75 lbs (34 kg)

  • Worm Wheels: 144 mm

  • Max Slew Speed: 3°/sec

  • Tracking Rates: Sidereal, Solar, Lunar

  • Alignments: 2-Star, 1-Star, Solar System, Quick Align

  • PEC: Yes

  • Ports: 4 AUX, 2 autoguide (1 near saddle), USB for mount and HC

  • Power Input: 12 V / 3 A

  • Tripod: 70 mm steel, height 838–1397 mm

  • Total Height: 1524–1956 mm

  • Mount Head: 23.8 kg (52.6 lbs)

  • Tripod: 21 kg (46.2 lbs)

  • Counterweights: 2 x 10 kg (22 lbs)

  • Total Weight: 84.2 kg (185.8 lbs)

Included Items

  • RASA 11 V2 Optical Tube

  • CGX-L Equatorial Mount

  • Steel Tripod

  • 2 x 22 lb Counterweights

  • NexStar+ Hand Control

  • DC Power Cable

  • Camera Adapters (M42 & M48)

  • Counterweight Shaft

  • Allen Key

  • Software: CPWI, Starry Night SE, SkyPortal