Celestron CGX-L Equatorial 1100 11" f/10 Schmidt-Cassegrain GoTo Telescope

BH #CECGXL1100SC • MFR #12071
Celestron CGX-L Equatorial 1100 11" f/10 Schmidt-Cassegrain GoTo Telescope
Key Features
  • 11" Schmidt-Cassegrain OTA
  • 2800mm Focal Length, f/10 Focal Ratio
  • StarBright XLT Optical Coating System
  • Motorized EQ Mount, 75-lb Payload
Celestron put together the CGX-L Equatorial 1100 11" f/10 Schmidt-Cassegrain GoTo Telescope to provide a complete observational platform that includes an over-sized-aperture optical tube assembly (OTA), the NexStar+ computer hand controller, an updated motorized equatorial mount and tripod, plus an array of accessories to get you set up and observing the Moon, planets, and especially deep-sky subjects like nebulae, galaxies, and star clusters.
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Celestron C11 Overview

  • 1Description
  • 2Celestron C11-A XLT 11" f/10 Schmidt-Cassegrain Telescope (OTA Only, CGE Dovetail)
  • 3Celestron CGX-L GoTo EQ Telescope Mount Head
  • 4Celestron CGX-L Stainless Steel Telescope Tripod
  • 5Celestron CGE PRO Counterweight - 22 lb

Celestron put together the CGX-L Equatorial 1100 11" f/10 Schmidt-Cassegrain GoTo Telescope to provide a complete observational platform that includes an over-sized-aperture optical tube assembly (OTA), the NexStar+ computer hand controller, an updated motorized equatorial mount and tripod, plus an array of accessories to get you set up and observing the Moon, planets, and especially deep-sky subjects like nebulae, galaxies, and star clusters.

Celestron C11-A XLT 11" f/10 Schmidt-Cassegrain Telescope (OTA Only, CGE Dovetail)

Outfitted with an over-sized aperture, long effective focal length, and their proprietary StarBright XLT optical coatings, the Celestron C11-A XLT 11" f/10 Schmidt-Cassegrain Telescope provides power and portability. The coating system consists of anti-reflection coatings on the corrector plate, highly reflective index mirror coatings, and low-absorption/high-transmission glass components to ensure that the maximum amount of light is gathered and transmitted to the user's eye. This system ensures bright and clear high-contrast images with accurate color rendition across the entire visual spectrum without visible distortion at the edges. Celestron includes a standard 1.25" visual back to accept eyepieces and accessories such as the 40mm eyepiece and 90° diagonal supplied with the optical tube assembly (OTA). This OTA is offered here without a mount or tripod for users who already have a support system—just ensure the mount's payload capacity exceeds 27.5 pounds to safely carry the weight and that the mount has a Losmandy-style saddle to match the OTA's CGE mounting plate.

Optical Tube
  • 11" (279.4mm) aperture
  • f/10 focal ratio
  • 2800mm effective focal length
  • Schmidt-Cassegrain design optical path
  • StarBright XLT optical coatings
  • Resolution: 0.5 arcsec (Rayleigh); 0.42 arcsec (Dawes)
  • Secondary mirror obstruction: 3.75" (95 mm); 34% by diameter; 12% by area
StarBright XLT System
  • Maximizes light transmission through optical path
  • Improves color rendition, contrast, sharpness, resolution, and brightness
  • Broadband system provides flat wavelength transmission across the entire visual spectrum
  • Multi-layer mirror coatings with layers of aluminum, SiO2 (quartz), and TiO2 (titanium dioxide)
  • Multi-layer anti-reflective corrector plate coatings with layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide); hafnium has a wider band-pass than the commonly used titanium
  • High-transmission water white glass corrector plate limits light loss due to internal absorption
Mounting
  • Optical tube only—mount and tripod required for proper use
  • Supplied with CGE dovetail plate, which is compatible with Losmandy-style saddles
  • Mount must have a payload capacity of over 27.5 pounds to safely support the OTA
Included Accessories
  • Visual back:
  • Standard threads for Schmidt-Cassegrain telescope optical tubes
  • 1.25" holder accepts 1.25" eyepieces and accessories
  • Eyepiece:
  • 1.25"-diameter barrel
  • Accepts most 1.25" astronomical filters
  • 40mm focal length produces 70x magnification
  • Diagonal:
  • 1.25"-diameter barrel
  • 90° angle places head in comfortable viewing position when scope is aimed at or near the zenith
  • Star diagonal corrects view horizontally, but not vertically
  • Finderscope:
  • 9x magnification
  • 50mm aperture
  • Mounting bracket included
UPC: 050234103695
Celestron CGX-L GoTo EQ Telescope Mount Head

The Celestron CGX-L GoTo EQ Telescope Mount Head improves on the venerable CGX platform to provide users with a heavy-duty research-quality mount for larger optical tube assemblies (OTAs), accessories, and imaging rigs.

Engineered to carry a heavy 75-pound payload, and outfitted with high-torque motors and a heavy-duty belt-drive system to improve tracking stability and reduce backlash, it is able to smoothly and accurately track near- and deep-sky objects for extended periods of time.

The brain of the CGX-L is the NexStar+ computer controller. Equipped with a database of 40,000 objects, including the planets, stars, nebulae, galaxies, and the complete Messier catalog, it can also be programmed with up to 200 custom user-defined objects with filters added to custom object lists. Its intuitive menu-driven user interface gives you the power to observe the heavens with nine slew speeds, three tracking rates, anti-backlash compensation, and Permanent Periodic Error Correction (PPEC) for smoother movements in the motors and improved tracking over time. Features such as guided tours, extended information on 200 popular objects, and multiple alignment options make the NexStar+ controller easy to use and invaluable to both new users and experienced stargazers.

Celestron offers this version of the CGX-L mount without a tripod for users who already have a tripod or pier. The Vixen/Losmandy dual dovetail saddle has also been lengthened to 10.6" to improve stability and offer greater security for larger OTAs.

Mount Head
  • German equatorial mount
  • Lower profile head design provides improved stability and portability
  • Head can be set on a tripod in three different positions to optimize the center of balance or to provide more clearance when needed at lower latitudes
  • 75 pound payload capacity, excluding counterweights
  • 3-65° latitude adjustment range
  • 20° of additional tracking past the meridian allows for longer observation time when viewing from a rise or hill
  • Two autoguider ports provide greater cable management options to avoid wire wrap
  • Long clutch levers make tightening and loosening of clutches easier for manual movement
  • Strong 1.25" (31.5mm) stainless steel counterweight shaft to handle additional counterweight load
  • Includes one 22 pound counterweight
  • Home sensors allow the mount to always start in the index position regardless of orientation before a power reset
  • Internal cabling reduces snags and other hazards
  • Stationary latitude knob and linkage system that reduces the amount of friction during polar alignment
  • Power input and lower accessory ports remain stationary while the mount slews to avoid snags
  • Integrated handles for easy transport and setup/breakdown
  • "Real Time Clock" keeps time and site information saved when power is disconnected
  • On/Off rocker switch with red LED
Motors and Drives
  • Dual-axis servo motors with optical encoders for smooth tracking and quiet operation
  • High-torque motors provide smooth tracking and slewing for heavy OTAs and accessories
  • Internal belt-drive system provides smooth, vibration-free tracking while minimizing backlash
  • Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and improve gear meshing
  • Limit sensors automatically shut off slewing or tracking before reaching the hard stop fail safe
  • Internal hard stops for both axes prevent cable tension and tripod strike
  • Autoguider capable for making corrections while astroimaging
  • Large 144mm-diameter worm wheels to better and more accurately drive heavier loads
  • Low-friction Teflon bearings on azimuth adjustment to make adjustments easy under full load
  • USB 2.0 port to connect directly to PC with PWI software
  • Threaded power input barrel connector eliminates accidental disconnection
  • Runs on included 12 VDC, 4A car/vehicle power supply
NexStar+ Hand Controller
  • Features:
  • Intuitive menu-driven user interface
  • PWI telescope control software features multi-point mount modeling for extremely precise pointing accuracy
  • Nine slew speeds: 1/2x, 1x, 4x, 8x, 16x, 64x (0.3°/sec), 1.0°/sec, 2°/sec, 3°/sec
  • Multiple tracking rates: Sidereal, Lunar, and Solar
  • Anti-backlash correction trains out intrinsic play in gears for smoother movement and tracking
  • Permanent Periodic Error Correction (PPEC): Improves tracking precision for long-exposure astrophotography and imaging
  • Database:
  • 40,000-object database
  • 200 user-defined objects for customization
  • Filters for creating custom object lists
  • Solar system: All seven planets plus the moon, sun, and Pluto
  • Custom lists of all the brightest stars, double stars, variable stars, and asterisms
  • Custom lists of all the best galaxies, nebulae, and clusters
  • Complete Messier catalog
  • Select NGC objects
  • Functions
  • "All-Star Polar Alignment" software allows quick and precise polar alignment without extra polar alignment accessories, apps, or other assistance
  • Additional alignment options: One- or Two-star, Solar system, Quick, and Last
  • Sky Tour: Based on location, date, and time, the system shows the best objects in the sky and automatically slews to them
  • Object info: Provides useful information about the selected object such as magnitude and constellation; includes extended information about 200 popular objects
  • Physical characteristics:
  • 2-line, 18-character LCD window with red backlighting for comfortable viewing without affecting night-adjusted vision
  • 19 function keys, backlit in red
  • Mini USB port: Connect to a computer for use with software programs for point-and-click slewing capability and updating firmware via PC
Mounting
  • Mount head only—tripod, pier, or other support system required
  • Long 10.6" dual CG-5 (Vixen) and CGE (Losmandy) saddle is compatible with the widest variety of OTAs around
  • Weight: 52.6 pounds
UPC: 050234153195
Celestron CGX-L Stainless Steel Telescope Tripod

Purpose built for their CGX-L equatorial mount, the Celestron CGX-L Stainless Steel Telescope Tripod is designed to carry their heaviest OTAs, imaging rigs, eyepieces, and accessories. It has large 2-stage 2.75" stainless steel legs and comes with an accessory tray that doubles as a stabilizer and spreader for the legs which helps to reduce vibrations. For your convenience, the tray is outfitted with holders for 1.25" and 2" eyepieces plus a stand to hold your smartphone or tablet. Weighing in at 46.2 pounds, you are assured a rock-steady observational experience.

UPC: 050234934831
Celestron CGE PRO Counterweight - 22 lb

This 22 lb/9.9 kg CGE PRO Counterweight from Celestron is designed specifically for use with their CGE PRO telescope mount.

UPC: 050234941877

Celestron C11-A XLT 11" f/10 Schmidt-Cassegrain Telescope (OTA Only, CGE Dovetail) Specs

Optical Design
Schmidt-Cassegrain
Aperture
279mm
Focal Length
2800mm
Focal Ratio
f/10
Eyepiece Barrel Diameter
1.25"
Diagonal
90° star
1.25" barrel
Finderscope
9x50 mm
Tripod
None
Mount Type
CGE dovetail plate
Power Source
None
Optical Tube Length
24.0" / 61.0 cm
Weight
27.5 lbs / 12.5 kg
Packaging Info
Package Weight
39.7 lb
Box Dimensions (LxWxH)
31 x 20 x 19"

Celestron CGX-L GoTo EQ Telescope Mount Head Specs

Packaging Info
Package Weight
64.5 lb
Box Dimensions (LxWxH)
30.4 x 20.78 x 15.6"

Celestron CGX-L Stainless Steel Telescope Tripod Specs

Connection
3/8"
Minimum Height
35.75" / 908.1 mm
Maximum Height
52.75" / 1339.9 mm
Leg Diameter
2.75" / 69.9 mm
Material
Stainless Steel
Weight
46.2 lbs / 21.0 kg
Packaging Info
Package Weight
67 lb
Box Dimensions (LxWxH)
51.5 x 21 x 21"

Celestron CGE PRO Counterweight - 22 lb Specs

Packaging Info
Package Weight
22.8 lb
Box Dimensions (LxWxH)
10.4 x 9.6 x 5.6"

Celestron C11 Reviews

See any errors on this page? Let us know

Can I attach a DSLR to this for ...

Can I attach a DSLR to this for astrophotographery?
Asked by: Juan
Yes, you can. You will need the Celestron T-Adapter for SCT telescopes #93633-A, which attaches an SLR or DSLR camera to a Schmidt-Cassegrain telescope for prime focus photography. You will also need a camera specific T-Ring (Canon or Nikon). Inquire with B&H for availability. An optional Focal Reducer #94175 is also available if you so choose.
Answered by: Telescope
Date published: 2022-01-10

Can the Skywatcher AZ-EQ5 carry this OTA?

Can the Skywatcher AZ-EQ5 carry this OTA?
Asked by: Ehud
The C11 OTA weighs 27.5 lbs (12.4 kg), so it falls within the load capacity range of the Sky-Watcher AZ-EQ5 mount.
Answered by: Telescope
Date published: 2022-01-24

is it posible to use 2" eyepieces with this ...

is it posible to use 2" eyepieces with this telescope ..?
Asked by: Francisco
Using the C11-A XLT OTA with a Dielectric Star Diagonal, 2” with Twist-Lock #93573, or Mirror Diagonal with XLT Coatings - 2" #93527, it is possible to use 2" eyepieces.
Answered by: Telescope
Date published: 2023-02-22

What is the difference between Celestron C11-A ...

What is the difference between Celestron C11-A and Celestron C11. Does Celestron C11-A have any improvements?
Asked by: Aleksandr
Celestron only offers the C11-A XLT 11" f/10 Schmidt-Cassegrain Telescope (CGE Dovetail) #91036-XLT. This optical tube features a black, aluminum optical tube with StarBright XLT Optical Coatings.
Answered by: Telescope
Date published: 2022-11-14

Can you see planets close up with this telescope ...

Can you see planets close up with this telescope or are they far away?
Asked by: Valeria
The C11 optical tube will show surface features of Mars during favorable oppositions, Jupiter's cloud bands and it's Great Red Spot. Saturn's Cassini ring division is easily viewable. Mercury is too small and too close the sun to see much detail. Venus is covered in clouds, so it appears featureless, but you can observe its phases. Uranus and Neptune are too far away and will resemble bluish dots.
Answered by: Telescope
Date published: 2022-08-15
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