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Celestron 11" RASA Rowe-Ackermann Schmidt Astrograph with CGX Computerized Mount # 12059

$5,199.00
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In stock
Ships by Next Business Day
Celestron 11" RASA Rowe-Ackermann Schmidt Astrograph OTA # 91075   +$0.00
Celestron CGX Computerized Mount without Tripod # 91530-1   +$0.00
Celestron CGX Tripod and Counterweights # 93484   +$0.00
Celestron 11 lb Counterweight for CGEM Mount # 94203   +$0.00
Celestron 11 lb Counterweight for CGEM Mount # 94203   +$0.00
Our Product ID: T-CE-12059
Manufacturer SKU: 12059
Item Can Ship: To US Only
Celestron 11" RASA Rowe-Ackermann Schmidt Astrograph with CGX Computerized Mount # 12059

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Quick Overview

GENERAL FEATURES

  • 11" RASA optical tube assembly
  • CGX computerized equatorial mount

ASTROGRAPH FEATURES

  • Ultra-fast, 11-inch f/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvature.  Cuts imaging time by more than half 
  • Expansive 43.3 optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors, while the usable field extends even further to 52 mm for larger format sensors.
  • Custom engineered linear brass focuser bearing reduces image shift, while dual-speed 10:1 FeatherTouch Micro Focus Knob provides the most precise focusing
  • Quiet, high-output 12V MagLev fan reduces cooldown time and blocks dust
  • Common camera adapters (T-thread and M48) included for easy attachment to popular CCD and DSLR cameras

COMPUTERIZED MOUNT FEATURES

  • All-new design. Sturdier and more rigid with quicker dampening time
  • Increased load capacity to 55 lbs.
  • Improved motors provide more torque, better slewing and tracking under heavy loads
  • Heavy Duty belt-drive system minimizes backlash while providing smooth motor operation under heavy loads 
  • Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh
  • Internal cabling for worry-free remote operation. Power input and accessory ports remain stationary while the mount slews to avoid snags
  • Internal hard stops for both axes prevents cable tension and tripod strike
  • Internal optical sensors on both axes for simple and safe remote operation
  • Home sensors allow the mount to always start in the index position regardless of orientation before a power reset
  • Limit sensors automatically shut off slewing or tracking before reaching the hard stop fail safe
  • Brand new control software developed in conjunction with PlaneWave Instruments for professional level control operation and imaging
  • Software includes multi-point mount modeling for extremely precise pointing accuracy and many more additional features for remote astroimaging
  • Wider tripod stance for improved stability
  • Adjustable EQ head position to optimize center of gravity over the tripod and fully utilize the increased 3º-65º latitude range
  • Dual-fit CG-5/Vixen and CGE/Losmandy dovetail saddle

IMPROVED TRIPOD INCLUDES:

  • 2" steel legs with height index marks for quick leveling
  • "Jack of all trays" can hold three 1.25" eyepieces, two 2" eyepieces, your smartphone, or other accessories
  • +20º of additional tracking past the meridian on either side
  • Tripod legs can be collapsed with accessory tray installed for faster setup and transport

IMPROVED ERGONOMICS:

  • Two handles for easy pickup and transport
  • All-new ergonomically designed dovetail clamping knobs
  • Innovative and improved polar alignment adjustment system
  • All-new ergonomic latitude adjuster for smooth and easy adjustment under full loads
  • Optional add-on polar axis finderscope - coming soon

ELECTRONICS:

  • All-new NexStar+ hand control with USB port 
  • Two AUX accessory ports to support wireless/WiFi alignment and operation with StarSense AutoAlign and SkyPortal WiFi Module accessories (sold separately)
  • USB 2.0 port, used to connect directly to PC with included software
  • Autoguider port
  • PPEC ready
  • Threaded 12VDC power input barrel connector
  • Internal Real Time Clock (keeps time and site information saved)

Product Details

Capturing impressive deep-sky astroimages is easier than ever with Celestron’s new Rowe-Ackermann Schmidt Astrograph, the perfect companion to today’s top DSLR or astronomical CCD cameras. This fast, wide-field f/2.2 system offers two huge advantages over traditional f/10 astroimaging: better apparent tracking and shorter exposures. That means you’ll create better-looking astroimages in a fraction of the time, even without the use of an autoguider.

The Rowe-Ackermann Schmidt Astrograph builds on the legacy of Celestron’s Schmidt Camera, which allowed astrophotographers to produce images on film in the 1970s.

Today, with CCD sensor sizes as large as film—or larger—the Schmidt Astrograph offers a 43.3mm optimized image circle to capture pinpoint stars on the largest imaging chips. (Note: We previously published 70mm which is actually the aperture of the last lens in the telescope. The optical design has not changed). Combine this large image circle with a focal length of just 620 mm and you have an instrument suitable for wide-field imaging, creating huge mosaics of the night sky, surveying, and even comet hunting.

OPTICAL PERFORMANCE
The Rowe-Ackermann Schmidt Astrograph features newly designed optics with 4-element rare-earth glass for images free of false color and aberrations like coma and field curvature. The optical quality and spot size across the entire image circle is unprecedented for an astrograph in this price range—or even that of a much more expensive instrument. The design also provides minimal vignetting. 

ADVANCED FEATURES
Advanced features like a custom engineered linear brass focuser bearing and FeatherTouch Micro Focus Knob allow you to make the fine adjustments you need to capture the perfect shot. Meanwhile, a12V MagLev fan reduces cooldown time and provides optimal airflow through the dust filtered optical tube.

Engineered as a complete astroimaging system, every component of the Rowe-Ackermann Schmidt Astrograph is optimized for peak performance with DSLR and astronomical CCD cameras. Down to the thickness of the glass used in the included fully-multicoated optical window or an optional imaging filter, every component of the system has been taken into careful consideration to work together seamlessly.

CGX MOUNT

Celestron’s workhorse CGEM mount lineup has been the German Equatorial backbone for telescopes ranging from 6 to 11 inches of aperture. Since that time, many more astro-imagers and planetarium controlled setups have emerged as backyard telescope technology has evolved. Celestron’s engineering team applied their years of experience designing German Equatorial mounts to the all-new CGX EQ, a culmination of all the advancements made to our technologies, value, and ease-of-use.

The new CGX was designed to better support your telescope for both visual and astro-imaging pursuits.  Key design goals included a lower profile EQ head, which provides a more compact and therefore more stable setup; a better drive system; remote operation-friendly with home and limit optical sensors; easier polar alignment adjustments; and better cable management. In addition to that, we’ve made mechanical and ergonomic improvements throughout to make the mount sturdier, easier to use, and transport. The CGX is our new Equatorial backbone to support a wide range of telescopes.

For eight years, Celestron’s workhorse CGEM mount lineup has been the German Equatorial backbone for telescopes ranging from 6 to 11 inches of aperture. Since that time, many more astro-imagers and planetarium controlled setups have emerged as backyard telescope technology has evolved. Celestron’s engineering team applied their years of experience designing German Equatorial mounts to the all-new CGX EQ, a culmination of all the advancements made to our technologies, value, and ease-of-use.

The new CGX was designed to better support your telescope for both visual and astro-imaging pursuits.  Key design goals included a lower profile EQ head, which provides a more compact and therefore more stable setup; a better drive system; remote operation-friendly with home and limit optical sensors; easier polar alignment adjustments; and better cable management. In addition to that, we’ve made mechanical and ergonomic improvements throughout to make the mount sturdier, easier to use, and transport. The CGX is our new Equatorial backbone to support a wide range of telescopes.

Specifications:

1. Optical Tube

  • Optical Design: Rowe-Ackermann Schmidt
  • Aperture (mm) 279 mm (11 in)
  • Focal Length: 620 mm
  • Focal Ratio: 2.22
  • Backfocus from front lens assembly: 72.8 mm
  • Backfocus from included camera adapters: 55 mm
  • Central obstruction diameter: 114mm
  • Finderscope: Not Included
  • Light Gathering Power (Compared to human eye) 1588x
  • Optical Coatings: StarBright XLT
  • Total Telescope Kit Weight: 143lbs
  • Includd Items: Total Telescope Kit Weight
  • Resolution (Rayleigh) 0.5 arc seconds
  • Resolution (Dawes) 0.41 arc seconds
  • Optical Tube Length: 33in

2. Mount

  • Mount: German Equatorial Mount
  • Instrument load capacity: 55lbs
  • Tripod height adjustment range: 47.25” to 77.5” including EQ headA
  • Tripod leg diameter: 2"
  • Latitude adjustment range: 3º-65º
  • Tripod Weight: 19.2 lbs
  • EQ Head Weight: 44 lbs
  • Max Slew Speed: 5º/second (4º/second is default)
  • Tracking Rates: Sidereal, Solar and Lunar
  • Number of Auxiliary ports (for hand control and accessories) 2
  • Autoguide Port: Yes
  • USB Port: Yes
  • Software: New telescope control PC software
  • Included Items: CGX Equatorial Head, CGX Tripod, Accessory Tray, One 17 lbs counterweight, NexStar+ Hand Control, DC Power Cable (plugs into cigarette lighter socket)

 

Manufacturer part number: 12059

Product carries a two year manufacturer warranty (US/Canada only).

Useful Resources

  • CGX Introduction by Bryan Cogwell


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