Striking a comfortable balance between power and portability, the Celestron C6-A-XLT CG-5 6" f/10 Schmidt-Cassegrain Telescope is an ideal choice for observing objects within or beyond our solar system. It features a Schmidt-Cassegrain optical system consisting of a corrector plate, spherical primary mirror, and secondary mirror that work together to reduce spherical and chromatic aberrations for crisp and clear high-resolution images with accurate color representation without distortion, especially at the edges. Complementing the optical system is the proprietary StarBright XLT optical coating system, which improves light transmission and reflectivity across the entire visual spectrum.

The optical tube is outfitted with a standard 1.25" visual back to make it easier to find eyepieces, accessories, and imaging gear. For visual observations, a 1.25" star diagonal is included along with a 25mm eyepiece that yields 60x magnification. The C6-A-XLT is offered here without a mount or tripod for users who already have a reliable support system and are looking to upgrade or add to their existing gear, but comes with a standard-sized CG-5 dovetail plate that is compatible with Vixen-style saddles.

1500mm Focal Length, f/10 Focal Ratio    Motorized Computer-Controlled EQ Mount    ISO Compliant Safe Solar Filter

• 6" (150mm) aperture
• f/10 focal ratio
• 1500mm effective focal length
• Schmidt-Cassegrain catadioptric optical design
• StarBright XLT optical coatings
• Resolution: 0.93 arcsec (Rayleigh); 0.77 arcsec (Dawes)
• Secondary mirror obstruction: 2.2" (69mm); 37% by diameter; 14% by area

• 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

• Optical tube assembly (OTA) only, mount and tripod required for proper use
• Standard CG-5 (Vixen-style) dovetail plate for compatible saddles
• OTA weight: 10 pounds

• Visual back:
• Standard Schmidt-Cassegrain telescope threads
• 1.25" eyepiece/accessory holder
• Use for prime focus or projection astrophotography with optional adapters

• Eyepiece:
• 1.25"-diameter barrel
• Accepts most 1.25" eyepiece filters
• 25mm focal length yields 60x power
• 0.83° apparent angle of view
• 44' field of view at 1000 yards

• Diagonal:
• 90° angle puts head in comfortable viewing position
• Threaded for direct connection to OTA without the need for the visual back
• 1.25" snout and eyepiece/accessory holder
• Star diagonal corrects image horizontally, but not vertically

• Finderscope:
• Low 6x magnification preserves wide field of view to more easily find alignment or guide stars
• 30mm aperture helps to see dimmer objects and stars for easier alignment and star-hopping navigation

Related Questions and Answers

Q: 1. I have just taken delivery of this telescope. The 'Celestron' logo on the side of the fork mount arm (above the WIFI symbol indicator) does not light up under any circumstances. (The WIFI connection symbol light and tray accessory light work fine. ) On the regular 'Evolution' models (IE not this limited edition model) this 'Celestron' logo serves as a battery indicator light and power light. It pulses when the battery is charging and it is illuminated when the mount power is switched on. The regular 'Evolution' user manual refers to this light as the 'Celestron Power Logo'. To be clear - I am not talking about the WIFI symbol light, which is working fine. So my question is - does this Limited Edition model actually have a working 'Celestron Power Logo' light? The design of the Celestron logo on the fork arm on this limited Edition model is different from the regular Evolution models and I am wondering if it is actually meant to light up on my model?? Otherwise, how am I meant to be able to see if the battery is charging, etc??? (See "Appendix C: L.E.D. Status" of the regular Evolution manual where it confirms about the Power Logo lighting up during charging, etc) So, right now, I don't know if my Celestron Power Logo light is broken or if this precise model does not have one?? Please only respond if you are SURE of the answer to this question. I don't mean to sound rude, I just want to know if I have a defective mount or not :) I dont have a smart phone to check battery status, so it's very important for me to have a working battery status light. Celestron agree with me, because they designed the regular Evolution model with this light ;) Thanks for any help you can give me in solving this mystery.

A: Your mount is not defective. The plastic in the fork arm in front of the Power Logo is opaque on the Limited 60th Anniversary NexStar Evolution 8 #12098, so the battery light is not visible. Customers will need to download the SkyPortal App to see what the battery level on the mount is and verify that the battery is charging. We apologize for the confusion and will be making an official statement regarding this for our website shortly.

Q: 2. What is the primary mirror wavefront error value?

A: The Celestron C8-A-XLT CGE 8" f/10 Schmidt-Cassegrain Telescope (OTA Only) has a 1/4 wavefront error.

Q: 3. Does the telescope come already in the Hard Case in this kit or do the come separately packed?

A: This question is a double of the prior question.

Q: 4. What is the package shipping weight and dimensions?

A: Unfortunately we are unable to provide the Shipping Dimensions, and Weight. My apologies. The dimensions of the scope packaged in the manufacturer's box is 43 X 28 X 15 (LXWXH).

Q: 5. Does this scope have fastar capability? Thank you.

A: Yes. The Celestron C8-A-XLT CGE 8" f/10 Schmidt-Cassegrain Telescope is Fastar compatible.

Q: 6. Can this telescope also be powered from a mains lead or is it battery only?

A: While this telescope comes with AC adapter for charging, Celestron specifies using only battery power (though not while charging) for the evolution series telescopes.

Q: 7. Can I use this with canon 7D mark II to take photos of the moon? Are there better choices?

A: A Cassegrain type of scope is the ideal scope for astrophotography. In addition to the scope you will need the Celestron f/6.3 Reducer/Corrector BH #CERC • MFR #94175 and the Celestron T-Ring for Canon EF-Mount Cameras BH #CETRCAF • MFR #93419. To mount the Canon EOS 7D to the scope.

Q: 8. Can you not use Starsense camera, with a Starsense HC, or do you need standard HC?

A: Good morning, If the StarSense autoalign system is used, it is mandatory that the dedicated StarSense hand controller be used for the autoalignment process. However, If the StarSense camera and the autoalign system is not used, the StarSense hand controller can be used to "manually" control the telescope in place of the standard Nexstar Plus hand controller.

Q: 9. Is the mount compatible with NexStar SE mount?

A: The Celestron C8-A-XLT CGE 8" f/10 Schmidt-Cassegrain Telescope (OTA Only) uses a larger CGE plate and will not fit in the smaller Vixen style plate that the Nexstar uses.

Q: 10. What is the minimum and maximum height of the tripod with the legs spread out, and how tall is the alt-az mount?Thank you for answering my question.

A: It is 22 -40 .