The best telescopes for deep space observation will open up a whole new world when viewing the night sky through a telescope. You'll likely have some questions about choosing the right one for you.
Like, what are the best telescopes for deep space? And how do you explore the birthplaces of stars, giant clusters with millions of members, and even other galaxies from your own backyard? Using one of the best telescopes for deep space is an essential tool for the budding deep-sky explorer, offering a much greater light grasp than the unaided eye and more flexibility than a pair of binoculars or beginner telescope.
If you want to look for a more all-round telescope for stargazing, try our guide to the best telescopes which has a good selection of scopes to meet any budget, though we do have a specific telescopes for under $500 guide too. If planets are more your thing, we have our round up of best telescopes for seeing planets.
If you have children who want to explore space with you, consider one of the best telescopes for kids, the best binoculars for kids, or the best telescopes for beginners too — all perfect for young astronomers.
Today's best telescopes for deep space 2023 deal:
Why you can trust Space Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.
Celestron Advanced VX 8" Newtonian Telescope:
Was $2118.95, now $1629.00 at Adorama (opens in new tab)
This is a super all-round telescope that aligns automatically with Celestron's Starsense app. It's excellent for astrophotography and has several upgrade paths when you're ready to expand your horizons.
Best telescopes for deep space 2023
There's a reason the Celestron NexStar 8SE is top of our list. One of the most striking things about it is its compact and practical size, despite offering a long focal length. The body is free of clutter, so it is easily transportable. You can easily pick it up and transport it without worrying about breaking components or accidentally snapping things off. It's pretty heavy, but that gives it a robust and sturdy feel, which we want when we invest this sort of money.
The telescope is controlled using an in-built hand controller. As we mentioned in our Celestron NexStar 8SE review, we liked the feeling of using the hands-on controller with tactile, easy-to-use buttons rather than having to rely on a smartphone app.
Astrophotographers taking long exposures will love the smooth and accurate tracking, made possible thanks to the high-quality motorized functionality.
Although it is quite a sizeable financial investment, the Celestron NexStar 8SE is built to last. It will easily see you through decades of star and space gazing enjoyment, thus being excellent value for money.
- Read our full Celestron NexStar 8SE review
At less than $300, this telescope is a firm favorite among beginners looking for a highly portable start in deep-sky observation. Despite its diminutive size and lightweight, the Heritage-114P Virtuoso isn't lacking in features. It offers the whole Newtonian reflector experience with the added benefit of being able to automatically counteract the rotation of the Earth and track the sky. With the mount's AA battery or DC-powered motors switched on, you can smoothly slew across the sky using the built-in controls and then steadily keep your object of interest within the field of view.
The Virtuoso tabletop Dobsonian mount can be upgraded at any time with the addition of Sky-Watcher's Synscan GoTo handset. This can find more than 40,000 objects in the sky for you — particularly useful for tracking down those very faint sights that don't readily jump out in the field of view. With a 4.5-inch primary mirror, the Heritage-114P is on the smaller side for a Newtonian reflector. Still, it is great value within this affordable price range and provides surprisingly bright views of diffuse targets like nebulae and galaxies. Unfortunately, the included red-dot finder isn't optimal for hunting down deep-sky objects, but the telescope's smooth slewing controls will ensure you can hop to them using nearby field stars.
We've noticed stock seems to be low in the US, you might want to consider the Sky-Watcher Classic 200P (opens in new tab) (further down this guide) which is more readily available.
Astronomers generally agree that the deep sky starts to come into view in a telescope with at least six inches of aperture. Orion has delivered this in a tabletop format with their StarBlast 6i, which is capable of resolving stars in brighter globular clusters as well as the structures of planetary nebulae. During our Orion StarBlast 6i IntelliScope review we found the supplied eyepieces provide good starting points for exploring a range of deep-sky objects, including large emission nebulae (like the Orion Nebula at 30x) and compact clouds (like the Ring Nebula at 75x.) The included red dot finder is a slight drawback to the overall package, but thankfully it uses a standard dovetail mounting shoe and can be upgraded to an optical finder anytime.
The StarBlast 6i's unique selling point is its intelligent push-to Dobsonian mount, which is not only compact and sturdy but capable of helping you navigate the stars to find more than 14,000 objects. With built-in encoders and a handset using just a single 9v battery, it directs you to manually slew the telescope to find whatever you're looking for. It's great for learning your way around the sky, offering an experience that's both easy and rewarding at the same time. The mount also includes a well-thought-out eyepiece rack to keep your eyepieces organized and protected from knocks or drops in the dark.
We must note that this product is now discontinued so they are increasingly hard to find, you'd probably be looking at a used model. Another Orion model we'd recommend considering is the Orion 8944 SkyQuest Dobsonian (opens in new tab).
- Read our full Orion StarBlast 6i Intelliscope review
It's often surprising to calculate the increase in light grasp between two telescope apertures. An 8-inch mirror is only 33% wider than a 6-inch, but it collects a whopping 77% more light, resulting in much brighter images. Sky-Watcher's Skyliner-200P is hands down the most affordable way to enjoy deep sky astronomy at this standard, with a system that's light on flashy features. Its basic Dobsonian mount can't find or track objects in the sky for you, but with smooth mechanics, you'll have no trouble doing this the old-fashioned way. The 50mm finder — a small telescope in its own right — is ideally suited to finding and centering objects of interest before investigating them with the sizable main mirror.
The telescope also features a dual-size focuser, which can accept 2-inch eyepieces — a must for anyone seeking the most immersive deep-sky views. 2-inch eyepieces can achieve wider fields of view at lower magnifications for some truly spectacular vistas. While heavy at nearly 24 kg, the Skyliner-200P has a fairly small footprint of about 54cm, fitting neatly into small storage spaces when stored vertically. It can be set up and packed away quickly and conveniently compared to other models in its size bracket. It's a superb value proposition for those on a budget looking to do serious deep-sky work. If you can double your budget, it might be worth considering the Flextube Synscan Go-To version of the same telescope — both have excellent optics.
Today's amateur telescopes are smarter and more performant than anything on the market just a decade ago. The Evolution 8-inch EdgeHD from Celestron employs a widely acclaimed optical tube assembly as the basis for an impressive overall system. The StarSense camera not only aligns the telescope for you but also connects to Celestron's SkyPortal App on your phone or tablet via the telescope's inbuilt WiFi. From here, you can locate and lock on to over 120,000 targets with just a few taps. This is all powered by a substantial rechargeable battery built into the mount — no cables or external power supply are required. Of course, all this technology comes at quite a high price, but if you want a home observatory that is smart enough to set itself up and navigate the sky for you, it's a reasonable price.
Compared with the Newtonian design, the Schmidt Cassegrain is expensive for its aperture, but it is extremely compact, employing two mirrors and a corrector plate to fold its long focal length into a shorter tube. The EdgeHD optics are among the best-in-class at this price point, and this tube assembly is well suited to astrophotography with the right accessories. Using a focal reducer, it can operate at f/7, and is also compatible with Hyperstar, which brings its operational focal ratio down to f/2! Celestron also sells a wedge, which converts the Altazimuth mount into an Equatorial mount, making long exposures possible. As we discovered in our Celestron Advanced VX 8 Edge HD review, it is rather light on accessories out of the box, but there are several upgrade paths to suit your ambitions when you're ready.
- Read our full Celestron Advanced VX Edge HD review
Here we have something quite different from the other scopes on this list. The eVscope 2 (the newer version of the eQuinox) offers a very different way to 'see' the night sky. As a beginner, you can navigate the night skies in no time.
The original eQuinox (opens in new tab) didn't feature an eyepiece. Instead, it used a camera built into its optical assembly to gather and integrate light from faint objects, producing long-exposure images sent to your phone via the Unistellar app. The eVscope 2 (opens in new tab) also has the camera-to-smartphone capability, but it also has a Nikon eyepiece which will appeal to purist astronomers and clubs who don't want to be limited to only 'seeing' the sky through a smartphone.
During our Unistellar eVscope 2 telescope review, we established it is straightforward to navigate the night sky at the touch of a button, even with no prior astronomy knowledge. In Explore mode, the app will recommend celestial objects based on your location and time zone. You need your phone or smart device to operate the scope so ensure you've charged both up before exploring.
We'd recommend considering a traditional telescope if you're looking for highly detailed images for large prints. The 7.7MP resolution is somewhat lacking compared to the resolution you can get from a scope with DSLR or mirrorless camera combo.
- Read our full Unistellar eVscope 2 review
So, you want to jump into deep sky photography, capturing star clusters, nebulae and galaxies. If you're shopping on a budget, don't overlook this telescope. Pairing excellent mechanics with fast, bright optics, it's a no-nonsense astrograph — a telescope engineered with astrophotography in mind.
Of course, you can use it visually with an included extension tube, but you'll need to supply your own eyepieces. You'll also need to supply your own mount, as Orion doesn't sell this telescope as a bundle, but there are plenty of excellent computerized equatorial mounts to choose from. The Orion 6-inch F/4 Newtonian Astrograph also features a straight-through optical finder with a standard mounting bracket. You can use this to attach a guide scope in the future for more accurate tracking enabling longer exposures.
Orion has thoughtfully reinforced the focuser to support the weight of a camera and filter assembly on the side of the tube, so this is suitable for any camera including a DSLR or Mirrorless body. It's compact and light, and doesn't require an enormous mount to carry it, making it a perfect option for entering the world of serious deep-sky photography.
When it comes to seeing the incomparable beauty of the deep sky, nothing compares with the experience of looking through a giant Dobsonian telescope, although you will need a step ladder to get up to the eyepiece in many cases! Sky-Watcher's Stargate-500P is a 20-inch aperture colossus that brings a top-tier viewing experience to serious deep-sky observers. With a truss tube design, the telescope is relatively lightweight and can be set up or taken down piece by piece by a single person in as little as 20 minutes. A fabric shroud can be stretched over the truss assembly to block stray light and protect the mirrors when in use. With a DC plug or external power tank, the telescope can find and track objects in the sky with reasonable accuracy via the Sky-Watchers Synscan computer handset.
Dual-encoder technology allows you to manually slew the telescope by hand without having to realign it, as both axes continue to record their position, you can quickly jump from object to object with tracking enabled. It's a monster telescope that offers the ultimate deep sky viewing experience — there's nothing like the sight of a galaxy or nebula with such a large mirror under dark skies. It's probably best to start with something less complex and work up to this one if you catch the deep sky bug.
How we test the best telescopes for deep space
To guarantee you're getting honest, up-to-date recommendations on the best telescopes to buy here at Space.com, we make sure to thoroughly test every telescope through a rigorous review to test each instrument. Each telescope is reviewed based on many aspects, from its construction and design, to how well it functions as an optical instrument and its performance in the field.
Each telescope is carefully tested by our expert staff or knowledgeable freelance contributors who know their subject areas in depth. This ensures fair reviewing is backed by personal, hands-on experience with each telescope and is judged based on its price point, class and destined use. For example, comparing a 10-inch Dobsonian to a 2.76-inch refractor wouldn't be appropriate though each telescope might be the best pick in their own class.
We look at how easy it is to set up, whether computerized or motorized mounts are reliable and quiet, and if a telescope comes with appropriate eyepieces and tripods. We also suggest if a particular telescope would benefit from any additional kit to give you the best experience possible.
With complete editorial independence, Space.com are here to ensure you get the best buying advice on telescopes, whether you should purchase an instrument or not, making our buying guides and reviews reliable and transparent.
The best telescopes for deep space: What to look for
Telescopes come in various designs and sizes, so what should you consider for the best deep-sky views?
The number one factor in determining the relative deep-sky performance of any two telescopes is the aperture of the objective. Larger apertures collect more light, resulting in fainter objects becoming visible in the field. In general, mirrors are less expensive than lenses, so reflecting-type telescopes offer more bang for your buck when it comes to deep-space views.
For astrophotography, highly corrected fast optics are more important, as well as sturdy and accurate mounts that can track the sky. Computerized mounts are a must for imagers, and they also have advantages for visual observers. If you're new to the deep sky, consider a telescope that helps you find these faint objects that don't pop out as readily as the planets or bright stars. It could be a push-to system, which tells you how hot or cold you are, or a fully-fledged go-to system that steers itself to your preferred target. Here are some of the best telescopes for deep space exploration and photography.
When it comes to telescopes that test the limits of the sky, the sky is the limit. You can experience deep space on a budget, or invest in a no-compromise giant home observatory. Be sure to consider models which prioritize aperture and light grasp, as this will be essential for picking out the faintest targets, and if you intend to enter the world of astrophotography, choose something that's going to be suitable from the beginning, even if you don't have the equipment you need yet.
A sturdy equatorial mount with built-in go-to and tracking will unlock the longest exposures, allowing you to maximize the potential of your optical tube assembly. These larger, mirror-type telescopes usually require more maintenance than their smaller, more robust lens-type counterparts, but there's nothing you can't do yourself without some practice and understanding. At times it can seem unforgiving compared to the simplicity of looking at the Moon, but the deep sky is worth the investment. Have fun exploring the wonders of the Universe!