Skip to Content

Celestron EdgeHD 8-inch SCT (CGE) Optical Tube Assembly

  • mfr: 91030-XLT
  • SKU: 91030-XLT
Out Of Stock
Request stock alert

Available options:

  • Free standard shipping

    *Orders placed before 3 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

  • Free Local Pickup

    Please call for store stock availability.

    Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

Additional options:

Product highlights

  • 8-inch aperture with a focal length of 2032 mm
  • Aberration-free images across a wide visual
  • Astrograph-quality flat focal plane
  • Visibly sharp stars across large CCD chips
  • Improves the resolution and limiting magnitude
  • StarBright XLT optical coatings on every surface
  • Flexible tension clutches hold mirror and reduce image shift
  • Cooling vents release hot air from behind the primary mirror
  • Versatile imaging telescope available today​

Celestron EdgeHD 8-inch SCT (CGE) Optical Tube Assembly

The night sky has always fascinated individuals and with good reason. The heavens are teeming with life, but sadly, most of it is not visible to the naked eye. Now with the study of Astronomy and the invention of telescopes, the moon, stars and planets are all within reach. With the right instruments, there's no telling what you might see.

See the Universe in HD

The Celestron EdgeHD 8-inch SCT Optical Tube Assembly is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view. The EdgeHD OTA has an 8-inch aperture with a focal length of 2032 mm. It comes with a 40 mm Plössl 1.25-inch eyepiece, a 9x50 finderscope, and a 1.25-inch mirror diagonal for more comfortable viewing.

True Quality

Many optical designs that advertise themselves as astrographs actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.

Improved Performance

Superior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron’s StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.

Mechanical Features

In addition to EdgeHD’s optimized optical design, the telescope tube has been redesigned to make sure you get the most from your optics each and every night. Mirror clutches, tube vents and Fastar versatility are just three examples of EdgeHD's newest features.

Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).

Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter guaranteed to let warm air out without letting dust in.

EdgeHD is the most versatile imaging telescope available today. At its native f/10, you can achieve the image scale necessary to capture the smallest of deep sky objects. Add the optional reducer lens—custom-designed for your size EdgeHD tube—and you can increase your field of view without sacrificing optical performance. 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.

Individually Tested

Every EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets Celestron's rigid quality assurance. This final acceptance test confirms the EdgeHD will perform in the field and deliver high-quality astroimages.

Specifications

Main
Aperture 8-inch/200mm
Finder Scope Red Dot
Mount Design OTA (Optical Tube/No Mount)
Mount Operation Manual
Configuration Core
OTA Only OTA Only
Optical Design Schmidt-Cassegrain

Questions

Customer Questions
No Questions

Returns

Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

CELE357_52d628c3-fd55-4761-abef-e628c29c3d7c.jpeg

Celestron EdgeHD 8-inch SCT (CGE) Optical Tube Assembly SKU: 91030-XLT

Rated 5 out of 5 by from Love it! This is my first real telescope. I started with a $200 Celestron 127EQ and there is no comparison. This is so much clear and the mount is also such an improvement. No more shaking and tracking is awesome. Get some good eyepieces to take advantage of this beast. Due to the smoke from the fires in my area I still haven't had a good night to fully use it since I got the telescope :( But I got to see the moon.
Date published: 2020-09-11
  • y_2024, m_6, d_15, h_4
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_91030-XLT, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_focus_camera
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getReviews, 5.58ms
  • REVIEWS, PRODUCT

Customers also viewed

Navigating through the elements of the carousel is possible using the tab key. You can skip the carousel or go straight to carousel navigation using the skip links.
$1,799.99

Free standard shipping included