Celestron XLT 9.25" EdgeHD Optical Tube Assembly
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Celestron 9.25" EdgeHD Schmidt-Cassegrain Optical Tube Assembly with Starbright XLT Coatings

SKU: CNOTA9EHD MFR: 91040-XLT
(8)6 questions, 2 answers
$3,099.00
$4,028.95
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Key Features

  • Experience superior views with the 9.25" aperture EdgeHD Schmidt-Cassegrain telescope.
  • Enjoy exceptional optical quality with Starbright XLT coatings for brighter images.
  • Capture stunning celestial views with the telescope's impressive 2350mm focal length.
  • Achieve pinpoint stars to the edge of the field with EdgeHD Aplanatic optics.
  • Easily attach to your existing mount using the included CGE dovetail plate.
  • Find objects quickly and easily with the included 9x50 finderscope for telescopes.
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Questions & Answers

Shopper : Why Did You Choose This?MICHAEL A : It is the best scope for me. It has a true 2" Visual Back Stop. The Edge 8" does not benefit from 2" eyepieces because it's Visual Back Stop is well under 2 inches. I need a larger Eyepiece because my eyes are old and can't see well through a tiny 1.25 eyepiece; but most importantly, I bought it because "I want it" and if getting it turns out to be a mistake I'll have no trouble selling it but at lest I'll have had what I wanted instead of going without as I've done most of my life.HOLLY D : I've researched for quite some time and I purchased this to do astrophotography, particularly the planets. I cannot wait.LAURA D : I have used the Celestron Nexstar 8SE for viewing and some planetary and lunar photography for years and a 115 mm refractor on CGEM mount for DSO photography. I have gotten very good results and been very satisfied with both, but I wanted something a little larger than both of my scopes, that can track well on my mount, to photograph both planetary and DSO objects , and is good for viewing . I think the optics and weight of the 9.25 Edge definitely will meet those needs!ROBERT B : Reviews were outstanding!TAYLOR M : Moving up from my OG 130SLT to a bigger tube.DARYL M : Ed ting recommendedTOD I : Great all-around general purpose telescope for all astronomy targets. Will pair with quality Mount and guide system for accurate tracking of small targets.ROBERT K : Well reviewed scope, like the focal length, image qualityBRADLEY M : I have a Celestron C8E and wanted an upgrade for my Astrophotography hobby.DAVID T : State of the art optics in astrophotography with a medium long focal length.ERIC T : This is a stellar scope for both long focal length observation and astrophotographers, assuming you are guiding. It’s light enough to be flexible with a great image and strong magnification.JOE C : Great telescopeEric G : GreatWAYNE W : For deep sky observation and photography. I owned a Celestron 1100mm SC lens years ago and was very happy with its quality.

Reviews about this item

Review Summary

2023-03-12T09:53:23

Rated 5 out of 5

Very satisfied.

Great telescope. Great service. Ordering was very easy. It was delivered on schedule as promised. Very happy with my purchase and with Adorama.

DENNIS B.

2022-07-05T06:13:35

Rated 5 out of 5

Great product.

Great product, well constructed and quality material. All you expect from Celestron. I was surprised when I found out it had been shipped as it was not expected to happen for another 8 months or so.

WILLY M.

2021-08-10T14:39:38

Rated 5 out of 5

Very impressive telescope, good value, good service.

I am very impressed with the capability of this SCT so far. The 8" SCT combined with the CGEM II mount has been a great combination for my introduction to deep space photography. I still have a long learning curve to overcome but the telescope has provided some breathtaking observations already.

DONALD M.

2021-06-27T12:55:25

Rated 5 out of 5

Excellent optical tube

The tube arrived in great shape, carefully packaged, and is collimated well as far as I checked thus far. (For instance, it produces clear and sharp images of terrestrial targets like a distant sign or tree, incl. eben and natural colors. One warning: this tube comes with an extended visual back preinstalled, which is great - except that it means that it will not fit into the Celestron case that it should fit in (the smaller one that takes tubes up to and including 8? SCT?s like this one. Since no port cover is included, I ordered a short visual back that I can close with the included 1.25? plastic cover that did come with the tube for its extended visual back.

CLEMENS S.

2021-06-27T05:03:03

Rated 5 out of 5

Great Scope

Great scope. Works well on my Skywatcher EQ6-R, with ASI294MC Pro, EFW, EAF, ASIAir Pro, Pegasus power distribution box, Celestron Dew Shield. All works together with minimum issues.

Gregory C.

2021-05-23T10:28:03

Rated 4 out of 5

OTA is perfect. Included accessories, not so much

The OTA Is top notch. Quality build and looks really nice. The included accessories are pretty worthless for observational use. The included 90 degree diagonal, OTA SIDE, moves on its own when slewing with the two tension screws. You really gotta crank those puppies down really tight. It Does the same on the eyepiece side with eyepiece inserted. The finder scope is ok if you are contortionist. It CAN NOT be used as a auto guide later because all the sizes are from a different planet so nuthin sold would work. The CGEM eq mount is very well constructed and supports the 8hd flawlessly. Just add in all the upgrades you need to make it enjoyable and Clear Skies.

Timothy S.

2020-08-13T10:32:39

Rated 5 out of 5

Nice telescope

Very nice telescope. Suits my purpose well. Adorama had it in stock and nobody else did. Fast delivery.

JAMES H.

2019-12-12T19:15:10

Rated 5 out of 5

Great telescope

Great telescope but there is a pretty steep learning curve to climb before using it. I highly recommend the StarSense auto alignment accessory to make alignment automatic.

BELA O.

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Celestron EdgeHD Optical Tube Specifications

  • Optical Design

    Aplanatic Schmidt-Cassegrain

  • Aperture

    9.25" (235.0mm)

  • Focal Length

    2350mm

  • Focal Ratio

    f/10

  • Eyepiece Barrel Diameter

    2.0"
    1.25" with included reducer

  • Diagonal

    90 Degree star
    2" snout and eyepiece holder

  • Finderscope

    9x50

  • Tripod

    None

  • Mount Type

    CGE dovetail plate

  • Power Source

    None

  • Optical Tube Length

    22.0" (55.9cm)

  • Weight

    21 lbs (9.5kg)

  • UPC Code

    050234104098

46 Accessories for Celestron 9.25" EdgeHD Schmidt-Cassegrain Optical Tube Assembly with Starbright XLT Coatings

  • All Accessories (46)
  • Power Supplies (1)
  • Batteries & Power Supply (4)
  • Eyepieces & Accessories (23)
  • Telescope Accessories (4)
  • Filters (3)
  • Cleaning Accessories (1)
  • Photography Adapters (1)
  • T-Mounts (5)
  • Navigational Accessories (3)
  • Flashlights & Area Lights (1)
Celestron AC Adapter for CGE Pro Mount and CGEM
Celestron AC Adapter for CGE Pro Mount and CGEM
$92.95
Celestron AC Power Adapter for All Computerized Telescopes
Celestron AC Power Adapter for All Computerized Telescopes
$36.95
Celestron Car Battery Adapter for Telescopes
Celestron Car Battery Adapter for Telescopes
$30.95
Celestron Power Tank 12V Rechargeable Power Supply
Celestron Power Tank 12V Rechargeable Power Supply
$104.95
Celestron Power Tank 17 12v DC 17-amp Rechargeable Power Supply
Celestron Power Tank 17 12v DC 17-amp Rechargeable Power Supply
$189.95
Celestron 4mm Omni Series 1.25" Plossl Eyepiece
Celestron 4mm Omni Series 1.25" Plossl Eyepiece
$31.95
Celestron 6mm Omni Series 1.25" Plossl Eyepiece
Celestron 6mm Omni Series 1.25" Plossl Eyepiece
$31.95
Celestron 9mm Omni Series 1.25" Plossl Eyepiece
Celestron 9mm Omni Series 1.25" Plossl Eyepiece
$31.95
Celestron 15mm Omni Series 1.25" Plossl Eyepiece
Celestron 15mm Omni Series 1.25" Plossl Eyepiece
$31.95
Celestron Omni Series 32mm Plossl Eyepiece with 44 Degree Field of View
Celestron Omni Series 32mm Plossl Eyepiece with 44 Degree Field of View
$49.99
Celestron 40mm Omni Series 1.25 inch Eyepiece
Celestron 40mm Omni Series 1.25 inch Eyepiece
$52.95
Celestron 2.3mm X-Cel LX Series 1.25" Eyepiece
Celestron 2.3mm X-Cel LX Series 1.25" Eyepiece
$109.95

About Celestron EdgeHD Optical Tube

FEATURED REVIEWS

Great telescope

By BELA O.

Great telescope but there is a pretty steep learning curve to climb before using it. I highly recommend the StarSense auto alignment accessory to make alignment automatic.

Very satisfied.

By DENNIS B.

Great telescope. Great service. Ordering was very easy. It was delivered on schedule as promised. Very happy with my purchase and with Adorama.

Why settle for less when you can explore the universe in high-definition with our 9.25" EdgeHD Schmidt-Cassegrain Optical Tube Assembly with Starbright XLT Coatings This innovative telescope is an aplanatic, flat field Schmidt-Cassegrain model that delivers aberration-free images across an expansive visual and photographic field of view.

Unlike many optical designs that claim to be "astrographs", our EdgeHD telescope ensures pinpoint stars across a flat focal plane. This feature is crucial for astrophotography, as it prevents stars from appearing out of focus at the edge when used with the flat chip sensor of a digital camera. The EdgeHD optics produce a focal plane that is over three times flatter than a standard Schmidt-Cassegrain telescope and significantly flatter than competing coma-free designs. This guarantees visibly sharp stars across some of the largest CCD chips available today.

The EdgeHD telescope is not just about superior optics. It also boasts advanced mechanical features for an optimized viewing experience. The telescope tube has been redesigned to maximize your viewing experience every night. It features mirror clutches with flexible tension that hold the mirror in place, reducing image shift during long exposure astro-images. Once focused, these flexible rods ensure the mirror stays in place without exerting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece or on the sensor.

The telescope also comes with cooling vents located on the rear cell, allowing hot air to be released from behind the primary mirror. Each vent is equipped with an integrated 50-mesh filter, ensuring warm air is let out without letting dust in.

The EdgeHD is the most versatile imaging telescope available today. With its native f/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. A Barlow gives you added power for high-resolution planetary, lunar, and solar imaging. All EdgeHD optical tubes are Fastar-compatible, allowing the secondary mirror to be removed and replaced with a third-party lens accessory for ultra-fast f/2 wide field imaging.

Experience the universe like never before with our high-quality, durable, and advanced 9.25" EdgeHD Schmidt-Cassegrain Optical Tube Assembly with Starbright XLT Coatings. It's the perfect tool for amateur astronomers and astrophotographers seeking to observe and capture celestial objects in unmatched detail.

Celestron EdgeHD Optical Tube Features

  • Experience our best optical performance with EdgeHD's aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge of today's largest imaging sensors and widest eyepieces
  • Aluminum optical tube with tube vents featuring an integrated 50-mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging
  • Versatile design accommodates 2 focal ratios: native f/10 or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories
  • Celestron's premium StarBright XLT coatings provide maximum light transmission
  • A 9x50 finderscope, 2" mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2" eyepiece are all included

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

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Product Documents

User Manual

Key Features

  • Experience superior views with the 9.25" aperture EdgeHD Schmidt-Cassegrain telescope.
  • Enjoy exceptional optical quality with Starbright XLT coatings for brighter images.
  • Capture stunning celestial views with the telescope's impressive 2350mm focal length.
  • Achieve pinpoint stars to the edge of the field with EdgeHD Aplanatic optics.
  • Easily attach to your existing mount using the included CGE dovetail plate.
  • Find objects quickly and easily with the included 9x50 finderscope for telescopes.

What's in the box:

  • Celestron 9.25" EdgeHD Schmidt-Cassegrain Optical Tube
  • Luminos 23mm Eyepiece (2")
  • 9x50 Finderscope
  • 2" 90 Degree Star Diagonal
  • 1.25" Eyepiece Reducer Adapter
  • Celestron 2 Year Limited Warranty