Celestron Promo Codes and Coupons December 2025

Celestron

Celestron.com is a leading manufacturer and retailer of telescopes, spotting scopes, binoculars, and other optical equipment for astronomy and outdoor observation. Founded in 1960, they offer products for both beginners and advanced astronomers, along with educational resources and technical support.

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Today's Celestron discount codes

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5% off

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worked 6 months ago

5% Off Storewide at Celestron

Featured Celestron Products

Ultima 22-66x100mm Angled Zoom Spotting Scope

The largest aperture scope in the Ultima line, the 100mm Ultima offers more than 50% brighter images than the 80mm, allowing for better performance in low light conditions. The 100mm refractor features excellent multi-coated optics packed into a portable and durable refractor design and comes standard with a 22-66x zoom eyepiece. This series was designed to perform well in a range of viewing situations, making it a great all-around optical instrument. You’ll love it for observing nature and long distance spotting and since it is completely waterproof you can feel comfortable using it in extreme weather. The green rubber optical tube allows for subtle observation in any nature environment. Ultima spotters are a great companion for any nature or outdoor enthusiast. Soft carrying case included.

USD 469.95

Ultima 22-66x100mm Straight Zoom Spotting Scope

Celestron’s highly acclaimed Ultima Series is more versatile than ever. The Ultima Series feature multi-coated optics to provide exceptional clarity and brilliance. The largest aperture scope in the Ultima line, the 100mm, provides the best performance in low light conditions. Ultima Series spotters perform extremely well under all light conditions which makes them ideal for all types of outdoor viewing activities including bird watching, nature and wildlife, target shooting – even astronomy. The Ultima line are as great to look at as they are to look through. Their sleek design is accented with graceful contours that make them easy to hold and handle. The Ultima Series spotters are the perfect choice for the outdoor enthusiast looking for a spotter with quality design and construction, superior optics, and versatility at an affordable price.

USD 489.95

SkyMaster 25x70mm Porro Binoculars

Celestron’s SkyMaster Series of large aperture binoculars are a phenomenal value for high performance binoculars ideal for astronomical viewing or for terrestrial (land) use - especially over long distances. Each SkyMaster model features high quality BaK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions. The 25x70mm version is one of the most popular models in the series. It offers serious large aperture light gathering in an affordable and reasonably lightweight configuration.

USD 139.95

Eyepiece and Filter Kit - 1.25"

The Celestron 1.25” Eyepiece and Filter Kit is a great way to expand the functionality and enjoyment of your telescope. Inside the metal, foam-lined carry case you’ll find these accessories: 32mm Plossl Eyepiece - 1.25” 17mm Plossl Eyepiece - 1.25” 13mm Plossl Eyepiece - 1.25” 8mm Plossl Eyepiece - 1.25” 6mm Plossl Eyepiece - 1.25” 2X Barlow Lens - 1.25” #80A Blue Filter - 1.25” #58 Green Filter - 1.25” #56 Light Green Filter - 1.25” #25 Red Filter - 1.25” #21 Orange Filter - 1.25” #12 Yellow Filter - 1.25” Moon Filter - 1.25” Eyepieces - All five Plossl eyepieces can be used in any telescope with a 1.25” focuser. Each eyepiece features a four-element design with a 52º apparent field of view. The optics are fully multi-coated to improve light transmission and protect the optics. The 32mm Plossl eyepiece offers a low power, wide field view in most telescopes, the 13mm & 17mm focal lengths are good medium-power oculars, and the 8mm & 6mm eyepieces provide high magnifications, great for the Moon and planets, especially when seeing conditions are good. 2X Barlow Lens - The included, and very versatile 2X Barlow doubles the magnification of any 1.25” eyepiece. Since this kit includes five (5) eyepieces, you will be able to use them with and without the Barlow, giving you a total of ten magnification options in all. Any other 1.25” eyepieces you already have will also work in this desirable accessory, giving you even more magnification choices. Remember, high magnifications do not always produce clear, sharp results, especially on evenings of poor or moderate seeing conditions. Experiment to find the magnifications that are best for your telescope on a particular night. Filters - Colored filters can be used to bring out certain details on a planet’s surface or its cloud structure. All of the planetary filters included in the 1.25” Eyepiece & Accessory Kit, as well as the Moon filter, can be used on any 1.25” eyepiece with the proper filter threads, so they are very versatile. Just screw one onto your eyepiece of choice and slide it into the focuser. The Moon filter is one of the first accessories most new amateur astronomers buy, and for good reason! It helps block out a portion of the light the Moon sends into your eyepiece so that you can see details better. You can also try this filter on Venus; it blocks enough glare so you can observe the planet’s phases more easily. Metal Case: The sturdy metal carry case has die-cut foam inside to protect and cushion your accessories. Store each one in its appointed place when not in use and you’ll keep them looking and performing like new. The case is even large enough to carry a few extra accessories. Just pull out enough of the foam cubes to make a nest for your eyepiece, camera adapter, etc. A tight fit is better, so remove the least amount of foam possible before testing the fit. You can always remove more if you need to.

USD 239.95

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More Celestron Products

NexYZ DX Smartphone Adapter Kit

The NexYZ DX Kit is a great first step into the world of astroimaging or digiscoping. You get everything you need to capture sharp, detailed images and video: the customer favorite NexYZ smartphone adapter and a Bluetooth shutter release remote. Patented NexYZ Smartphone Adapter The NexYZ fits any eyepiece from 35mm to 60mm in diameter, including telescopes equipped with 1.25” or 2” eyepieces, spotting scopes, monoculars, and binoculars. NexYZ also attaches to microscopes with the addition of an included adapter ring, which takes the usable diameter down to 25mm, the size of a standard microscope eyepiece. The NexYZ DX Kit accommodates a wide range of smartphones including the larger “phablets” like the iPhone 8 Plus and latest Samsung Galaxy devices. The phone platform is fully adjustable and can fit any device—usually with the case still on. The secure platform stands up to the weight of these heavier devices with ease, thanks to NexYZ’s strong metal spring and threaded twist lock. Should you need to tighten the tension on each axis for a customized secure connection, click the Support & Downloads tab to read our NexYZ Tension Adjustment Guide. Bluetooth Shutter Release Remote To capture the best image, this kit also comes complete with a Bluetooth shutter release remote, which allows you to trigger the camera’s shutter on any Android or iOS smartphone without touching the device’s screen or buttons. This eliminates blurriness in your images caused by the phone or telescope shaking due to pressure from pressing the button manually. Pairing your Bluetooth remote to your smartphone for the first time takes only seconds. Detailed instructions are in our quick setup guide. Easy as X-Y-Z What makes patented NexYZ different from other smartphone adapters? The three-axis adjustment. Most adapters rely on you placing your phone perfectly on the platform and only offer limited adjustment in two axes. But NexYZ gives you the power to place your phone on the platform, center it over the eyepiece with the X and Y knobs, and then move up or down over the eyepiece until you have the entire field of view in your shot. And even though this adjustment is ultra-precise, it’s still quicker and easier than with other adapters. From start to finish, the process only takes about 30 seconds, including the time it takes to insert the phone into NexYZ, attach NexYZ to an eyepiece, start the camera app, and center the camera over the eyepiece using the knobs. Switching phones, eyepieces, or optical instruments, requires only slight adjustments to re-center the camera over the new eyepiece. If multiple people want to capture a shot through your optic, NexYZ’s simple spring-loaded clamps make it easy to remove one device and replace it with another in seconds. NexYZ is the ideal solution for star parties and group bird walks where everyone wants their own shot of the action. You can also switch your image from portrait to landscape simply by turning the padded eyepiece clamp and readjusting the X-, Y-, and Z-axis to realign your phone with the eyepiece. NOTE: NexYZ is compatible telescopes, spotting scopes, binoculars, monoculars, and microscopes. It does not fit riflescopes. NexYZ works with most phone cases, but if you have an especially large phone case with built-in batteries or a folio-style case, you will need to remove it.

USD 71.95

StarSense Explorer LT 114AZ Smartphone App-Enabled Newtonian Reflector Telescope

Celestron has reinvented the manual telescope with StarSense Explorer—the first telescope that uses your smartphone to analyze the night sky and calculate its position in real time. StarSense Explorer is ideal for beginners thanks to the app’s user-friendly interface and detailed tutorials. It’s like having your own personal tour guide of the night sky. Dock, Launch, Explore Leave complicated star charts, imprecise planetarium apps, and computerized mounts behind. With StarSense Explorer, locating objects has never been easier, faster, or more accurate. Within minutes of setting up the telescope, you’ll be navigating the sky with confidence. Simply place your phone in the unique StarSense dock and launch the StarSense Explorer app. After aligning your phone to the telescope’s optics (a quick, 2-minute procedure), StarSense Explorer generates a list of celestial objects currently visible. Make your selection and arrows appear onscreen, guiding you as you to move the telescope. When the object is ready to view, the bullseye turns green. Smartphone Compatibility StarSense Explorer works with most modern smartphones, including iPhone 6 and up and most devices running Android 7.1.2 or later manufactured since 2016. For a complete compatibility list, click here. Patented StarSense Sky Recognition Technology StarSense Explorer uses patented technology and your smartphone to determine exactly where the telescope is pointed in the night sky. A Lost in Space Algorithm (LISA), like the ones satellites use in orbit to correctly orient themselves, helps the app match star patterns it detects overhead to its internal database. While other astronomy apps may claim that they can help you find objects, they rely exclusively on the phone’s gyros and accelerometers, which aren’t as accurate as LISA technology. No other app can accurately tell you when your target is visible in the eyepiece. Sturdy Altazimuth Mount StarSense Explorer LT’s simple altazimuth mount makes it easy to move the telescope to find your target. An altitude slow motion adjustment with a sliding rod helps you fine tune the telescope’s pointing position and follow targets as they appear to drift across the night sky. It’s all anchored by an adjustable, full-height tripod. Dazzling Views with High Quality Optics With a large 114mm (4.5”) objective lens, this telescope has enough light gathering ability to bring out detail in celestial objects. You can expect sharp, bright views of Jupiter’s four Galilean moons, its cloud bands and Great Red Spot, the rings of Saturn, the trapezium in the Orion Nebula, and beautiful Pleiades Open Star Cluster. Perfect for the City or Dark Sky Sites Even if you live in a light polluted city location, StarSense Explorer is advanced enough to be able to pick out Jupiter, Saturn, Venus, the Orion Nebula, double stars, and a few more of the most famous celestial objects. But if you can take the telescope to an even slightly darker location, more objects will become visible. With this 4.5” Newtonian and relatively dark skies, the Andromeda Galaxy, Hercules Open Star Cluster, and so many more are easily within your reach. The entire telescope kit weighs just 10.4 pounds, so it’s perfectly portable and easy to bring on your next camping trip or to a remote observing site. Everything You Need to Observe Immediately When you unbox your new StarSense Explorer LT, you’ll find: 114mm Newtonian reflector optical tube StarSense dock for your smartphone Low powered (25mm) and high powered (10mm) eyepiece 2x Barlow lens to double the power of each eyepiece StarPointer red dot finderscope, perfect for using the telescope during the day or without the StarSense Explorer app Altazimuth mount with slow motion control rod Full-height tripod with an accessory tray to keep you organized

USD 259.95

Basic Smartphone Adapter, 1.25”

Capture and share your observations through just about any optic with this handy, simple-to-use smartphone adapter. Whether you’re snapping an Instagram-worthy image of the Moon, sharing your latest wildlife sightings with a binocular or spotting scope, or preserving lab specimens with your microscope, this versatile adapter handles it all with ease. No matter which optic you choose, installing and using the adapter is hassle-free. First, place your phone in the adapter. It’s held securely in position with the help of tightening knobs that lock your phone in place. Next, align the phone’s camera with the center of the eyepiece. Once you’ve determined the perfect position, clamp the adapter over the top of the eyepiece and use the knobs to adjust for a secure fit. Note: Some large and/or bulky phone cases (including folio style cases) may need to be removed for the phone to fit in the adapter. Once the phone is mounted over the eyepiece, you can capture still images or video, plus access all the rest of your phone’s features. You can even text your photos to a friend or post them on social media while your phone is still mounted in the adapter. To determine if your optic is compatible with the Basic Smartphone Adapter, simply measure the outside diameter of your eyepiece. If it falls within the 29mm to 45mm range, you may use it with this adapter. The adapter does not work with riflescopes.

USD 20.95

NexGO Universal Smartphone Adapter

The NexGO Universal Smartphone Adapter is a great first step into the world of astroimaging or digiscoping. The NexGO provides you everything you need to capture sharp, detailed images and video. NexGO fits any eyepiece from 25.4mm (1.0”) to 44.45mm (1.75”) in diameter, including most telescopes with 1.25” eyepieces, spotting scopes, monoculars, binoculars, and microscopes. NexGO accommodates a wide range of smartphones including the latest devices from Apple, Samsung, and Google. The phone platform is fully adjustable and can fit any device—usually with the case still on. For older phones that are 5” tall or less, the NexGO includes a booster to ensure the fit with the device. Precise Alignment The NexGO sports rack and pinion X- and Y- fine adjustment knobs for precise alignment and it folds up to a smaller size for easy transport. Secure the NexGO smartphone adapter to your eyepiece by tightening the orange knob which will clamp the unit around the eyepiece. Maximize your storage space when traveling or not in use, the NexGO smartphone adapter collapses to a compact configuration for easy transportation and storing. NOTE: The X and Y adjustment racks come calibrated from the factory, but should you need to adjust them, go to the Support & Downloads tab and read our Tension Adjustment Guide for details. Robust Construction The secure platform stands up to rigorous field use thanks to its robust, durable construction with a metal frame and polymer body. The NexGO will stand up to years of outdoor adventures. Easy as Ever Most adapters rely on you placing your phone perfectly on the platform and only offer limited adjustments. But NexGO gives you the power to place your phone on the platform, center it over the eyepiece with the X and Y adjustment knobs until you have the entire field of view in your shot. From start to finish, the process only takes about 30 seconds, including the time it takes to insert the phone into NexGO, attach NexGO to an eyepiece, start the camera app, and center the camera over the eyepiece using the knobs. Switching phones, eyepieces, or optical instruments, requires only slight adjustments to re-center the camera over the new eyepiece. If multiple people want to capture a shot through your optic, NexGO’s simple spring-loaded clamps make it easy to remove one device and replace it with another in seconds. NexGO is the ideal solution for star parties and group bird walks where everyone wants their own shot of the action. You can also switch your image from portrait to landscape simply by turning the padded eyepiece clamp and readjusting the X- and Y-axis to realign your phone with the eyepiece. NOTE: NexGO is compatible with telescopes, spotting scopes, binoculars, monoculars, and microscopes. NexGO works with most phone cases, but if you have an especially large phone case with built-in batteries or a folio-style case, you may need to remove it.

USD 41.95

Sustainability Score

52%

While Celestron has made some efforts in sustainable packaging and energy-efficient manufacturing, they lack transparency in their environmental reporting and supply chain practices. Their ESG documentation is limited, and they provide minimal information about labor conditions in their manufacturing facilities. The company has basic recycling programs but lacks comprehensive sustainability goals or clear carbon reduction targets.

About Celestron

4.0 (3)

FAQs

: Celestron usually offers major sales during Black Friday/Cyber Monday, holidays like Memorial Day and Labor Day, and during the summer stargazing season (June-August).
: Yes, Celestron offers educational discounts for schools and institutions through their Educational Sales Program.
: The best time to purchase is during winter months (November-January) when sales are frequent and night viewing conditions are optimal. Summer sales are also good opportunities.
: Yes, Celestron offers price matching against authorized dealers for identical products within 30 days of purchase.
: In the past month, Celestron has launched 0 new promo coupons for shopper discounts. This indicates that Celestron does not provide regular opportunities for customers to save money on their purchases.
: On average, Celestron provides 0.5 discount coupons each month. Based on historical data, the average time between Celestron coupon releases every 60 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking Celestron website regularly, subscribing to email newsletters, and following them on social media.
: Celestron is offering no working store-wide codes, however they are also offering 1 additional discount codes with a best discount of 5% off
: terra.coupons is the #1 provider of discount codes for your favorite retailers, such as Celestron. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest Celestron discount codes.

Curated by

Aleksa P.

Deal Curator

Last updated December 2025

Aleksa is a deal finder from the tech-savvy city of Austin, Texas. A keen coder by day and a discount guru by night, Aleksa checks back regularly to update you with new deals.

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From the blog

2025-04-29