How to Buy Your First Telescope

Venturing into the night sky with a telescope is a thrilling experience. Whether you want to gaze at the craters of the Moon, observe the rings of Saturn, or dive deep into star clusters and galaxies, the hobby of astronomy opens up a whole new universe to explore. But first, you'll need to choose a telescope, and that part can feel like you've wandered into a maze of specs, sizes, and strong opinions.

Luckily, the experts at Celestron have got your back. In this guide, we're breaking down everything you need to know. You'll learn how to make an informed decision and find the telescope that fits the way you want to explore the night sky.

• Optical Tubes
• Mounts
• Telescope by Interests
• Celestron Smartphone Telescopes
• Recommendations
• FAQ
• Resources for Beginners

Choosing the Right Telescope Optical Tube

"Optical tube", "optical tube assembly", and "OTA" are all different names for the telescope tube you look through to see an image. Here's a quick overview of the different types of optical tubes Celestron makes.

Astronomy isn't a one-size-fits-all hobby, and different optical tube designs suit different observing targets and lifestyles. As you review this list, keep in mind that more than one design may work for you.

Refractor Telescope: Refractors are a perennial favorite for their simplicity and high-contrast views. These telescopes use lenses to bend and focus light, making them great for observing bright objects like the Moon, planets, and double stars. Because they use lenses instead of mirrors, they are easy to maintain and don't require regular alignment (also known as collimation). Beginner refractors are also relatively portable.

Newtonian Reflector Telescope: Reflectors use mirrors to gather and focus light. They generally offer larger apertures at lower prices compared to refractors. They also offer wider fields of view, making them a great choice for deep-sky viewing (galaxies, nebulae, etc.).

Schmidt-Cassegrain Telescope (SCT): Celestron's signature optical design, the SCT is a top choice among amateur astronomers for its versatile design. Using a combination of mirrors and lenses, SCTs excel at observing both planets and deep-sky objects. They strike a great balance between portability, power, and ease of use, making them suitable for beginners and experienced astronomers alike. Choose an SCT if you want a telescope that can grow with you for years to come.

EdgeHD Telescope: For those seeking advanced optical performance, Celestron's patented EdgeHD design offers premium aplanatic Schmidt optics, providing high-definition views for more experienced visual observers and astrophotographers.

Maksutov-Cassegrain Telescope (Maks): Maksutov-Cassegrain telescopes are compact and portable, known for delivering sharp images with minimal maintenance. They have a narrower field of view, which is best suited to lunar and planetary viewing. Although they have a small form factor, "Maks" are heavier than SCTs of the same size.

Rowe-Ackermann Schmidt Astrograph (RASA): Celestron's patented RASA is designed specifically for serious astrophotographers—it can't even accept an eyepiece for visual use! With its fast focal ratio, RASA captures breathtaking images of nebulae, galaxies, and star clusters.

For an even deeper dive into optical tubes, check out our article: "The Ultimate Guide to Optical Tubes"

Telescope Aperture: The Power of Light Gathering

You may have heard that "aperture is king" when it comes to choosing a telescope. But what is aperture, anyway? Aperture refers to the diameter of a telescope's main lens or mirror. This spec plays a crucial role in your telescope's performance.

The larger a telescope's aperture, the more light it can collect. More light brings out fainter celestial objects and finer details. A larger aperture will result in brighter, sharper views of distant galaxies, nebulae, and star clusters, as well as crisp images of planets and the Moon. Although a large aperture delivers better performance, it also increases the telescope's size, weight, and price. Finding the right balance between aperture, portability, and budget is key.

For more information about aperture, check out this article: "Which Aperture Is Best for Different Kinds of Objects?"

Telescope Mounts: Choosing the Best Base

A telescope mount is just as crucial as its optical tube. This foundational piece holds the optical tube securely on the tripod, stabilizes your setup, and moves to track celestial objects as they appear to drift across the night sky. There are two primary types of mounts: alt-azimuth (alt-az) and German equatorial (EQ). Both styles are available in manual and computerized (GoTo) versions. Each type has its strengths, depending on your specific goals in observing or astrophotography.

Alt-azimuth mounts are intuitive and beginner-friendly. They move in two directions—altitude (up and down) and azimuth (side to side), like a photographic tripod. With an alt-az mount, you can quickly point your telescope at any object in the sky, which is ideal for casual observing and quick setups. As objects appear to move across the sky, you'll make tiny adjustments in altitude and azimuth to follow them.

One popular option within the alt-az category is the Dobsonian telescope. Known for its simplicity and affordability, a Dobsonian features a Newtonian reflector optical tube mounted on a manual wooden "rocker-box" base. This no-frills design allows you to put more of your telescope budget into the optical tube, delivering impressive light-gathering capabilities at a lower cost. Large Dobsonian telescopes are an excellent choice for observing deep-sky objects, such as nebulae and galaxies, if you're comfortable navigating the night sky manually.

Unlike alt-az mounts, German equatorial mounts align to the celestial pole and move in right ascension (RA) and declination (Dec). Although they take a bit longer to set up, they are more convenient for tracking the same object over long periods, whether for visual or long-exposure astrophotography. Once you center an object in the telescope's eyepiece, you can follow it smoothly with one single adjustment.

When selecting a telescope mount, consider whether ease of use or long-term tracking is more important to you. For those more interested in astrophotography or advanced stargazing, an EQ mount offers greater accuracy and stability, making it easier to track objects over long periods and capture stunning photos.

Whether you choose an alt-az or equatorial mount, a manual telescope provides hands-on experience—an excellent opportunity to learn the night sky by allowing you to point and track celestial objects yourself. Computerized telescopes find objects for you with the press of a button, and then automatically track them as they appear to move.

For more information, check out this article: "Should I use an Alt-Az or EQ mount?"

What to Observe: Picking the Right Telescope for Your Interests

Before choosing a telescope, ask yourself this simple question: What do you want to see? Your observing goals will guide every other aspect of your purchase. Different telescope designs excel at different types of targets, so identifying what excites you most about astronomy will help narrow down your options.

Solar System Objects

If your primary goal is to study the Moon, planets, and bright Solar System objects, look for a telescope with high magnification and sharp, high-contrast views. These features allow you to see details like lunar craters, Saturn's rings, and Jupiter's moons clearly.

• Refractors: Ideal for crisp, detailed planetary views with excellent contrast and low maintenance. Great for beginners who want to focus on bright, nearby targets.
• Maks: Compact and powerful, Maks are optimized for high magnification, making them outstanding for lunar and planetary observing.
• SCTs: These workhorses are capable of higher magnification for excellent views of planets and double stars while still allowing flexibility for other targets.

In short, a longer focal length instrument provides higher magnification and more detail, a stable mount reduces shake at high power, and a compact design makes your telescope easier to transport and set up.

Deep-Sky Objects (DSOs)

If you're fascinated by faint, distant objects—like galaxies, nebulae, and star clusters—then aperture size becomes the top priority. The larger the aperture, the more light your telescope gathers, allowing you to see more structure and subtle detail in these dim targets.

• Newtonian Reflectors: Offer the largest apertures for the price, making them a go-to for viewing faint deep-sky objects.
• SCTs: Combine large apertures with compact tubes, great for deep-sky viewing and imaging.

In short, a larger aperture gathers more light for viewing faint deep-sky objects, a fast focal ratio (f/2-f/6) produces brighter images with shorter exposures, and a sturdy mount ensures stability for heavier optical tubes.

Versatile Observing (Planets & DSOs)

If you'd like a telescope that performs well across both planetary and deep-sky targets, consider a compound design that blends the strengths of refractors and reflectors. These models strike a balance between magnification, aperture, and portability, providing you with flexibility as your interests evolve.

• SCTs: True all-rounders, SCTs offer great views of the planets and DSOs. Many allow rear viewing for eyepieces and front-mounted imaging using Fastar systems.
• EdgeHD: This advanced design is ideal for users who want crisp visual views and aberration-free imaging. If you want the very best or plan to grow into astrophotography, choose EdgeHD.

In short, a moderate focal ratio (f/7-f/10) offers balanced performance, flexibility for both visual use and photography, and upgradeable systems so you can add accessories as your experience grows.

Celestron's Smartphone App-Enabled Telescopes

Choosing a Celestron telescope is an investment in quality, innovation, and a brand trusted by astronomers worldwide. With a rich history in optical technology, Celestron delivers a range of high-quality telescopes that cater to all experience levels, from beginners to advanced astrophotographers. The advent of smartphone app-enabled telescopes has made astronomy even more exciting, affordable and fun—and Celestron leads the way in both manual and computerized telescopes.

StarSense Explorer

Celestron has revolutionized manual stargazing with the StarSense Explorer—the first telescope to harness your smartphone's camera for real-time sky navigation and pinpoint positioning. Designed specifically for beginners, the StarSense Explorer features an intuitive app interface and guided tutorials that provide a personalized tour of the night sky.

What truly sets StarSense Explorer apart is its patented sky recognition technology, which accurately identifies the telescope's exact pointing position. By simply following the app's on-screen arrows, you can place stars, planets, galaxies, and nebulae in the eyepiece with bullseye precision, even on your first night out. With StarSense Explorer, newbie astronomers can effortlessly locate all the best celestial targets.

Celestron Origin

Celestron Origin is a powerful home observatory that combines top-tier optics and advanced imaging features with a user-friendly design. Origin doesn't use an eyepiece; it works with its companion app and your smartphone. Tap on any target, and Origin locates it in the sky and begins capturing. You see bright, colorful, detailed images of faint nebulae and galaxies in just seconds.

Unlike other smart telescopes that rely on simple reflectors or refractors, Origin utilizes Celestron's renowned RASA optical system, boasting the largest aperture and fastest focal ratio in its class. This translates to brighter, more detailed images of the night sky in significantly less time.

The Origin app, built on the trusted SkySafari™ platform, offers an unparalleled experience with AI-enhanced image processing, real-time sky analysis, and an extensive object database complete with audio guides—features that competitors simply can't match. While other smart scopes limit users to basic imaging capabilities, Origin provides room to grow, supporting standard filters, RAW file access, manual camera settings, and compatibility with advanced accessories for longer exposures.

With Celestron Origin, you'll be capturing every detail of your journey through the cosmos—no prior experience required. It's the top choice for those seeking more than an entry-level smart telescope.

More Celestron Telescope Recommendations

Celestron offers a wide range of models designed to match different skill levels, interests, and astronomy styles. Whether you're looking for a compact, travel-ready telescope for spontaneous sessions or a powerful system for exploring deep-sky objects and capturing astroimages, there's a Celestron telescope built for you. To make getting started easier, we've curated a selection of recommended telescopes to help you choose the perfect companion for your journey through the night sky.

Beginner Telescopes

Here are some of our most popular beginner-friendly options, offering a range of features and learning experiences:

Manual Telescopes

• PowerSeeker Series: Offering refractor and reflector designs with alt-az or EQ mounts, this telescope is easy to set up and use. It's ideal for beginners who want a simple way to explore the Moon, planets, and bright star clusters.
• AstroMaster Series: This telescope offers added stability and smoother control, featuring sturdier mounts and refined movement in both alt-az and EQ modes, delivering clear, steady views and ample room to grow in the hobby.
• StarSense Explorer Series: Using your smartphone and Celestron's patented sky-recognition technology, StarSense Explorer guides you to targets in real time—ideal for beginners who want extra help navigating the sky.

Computerized Telescope

• NexStar SLT Series: The Star Locating Telescope (SLT) features a computerized GoTo system and a built-in celestial database, allowing it to automatically find and track thousands of objects, enabling beginners to spend more time observing and less time searching.
• NexStar SE Series: Celestron's fan-favorite orange-tube telescope, NexStar SE combines GoTo technology, high-quality SCT or MCT optics, and ease of use. It's our top pick for beginners looking to take their observing to the next level.
• Advanced VX Series: A powerful entry point into computerized equatorial mounts, the AVX delivers precise tracking for smooth visual observing and is a solid foundation for exploring entry-level astrophotography.
• Celestron Origin Intelligent Home Observatory: A fully integrated, smart imaging system that automatically captures, stacks, and processes deep-sky objects, delivering breathtaking views straight to your device with no experience needed.

Each of these options delivers dependable performance, straightforward setup, and a path to grow your skills—so you can focus on exploring the night sky with confidence and excitement.

Budget- cautious: Getting the Best Telescope for Your Money

Your budget is the second crucial factor. Telescopes come at a variety of price points, and many affordable beginner telescopes offer great views without breaking the bank.

Here's a breakdown of what you can expect at different price points:

• Under $200: At this range, you can find beginner-friendly refractor or small reflector telescopes. These are perfect for viewing the Moon and planets, but may struggle with deep-sky objects due to their smaller apertures.
• $200-$500: In this mid-range, you'll find larger reflectors and some compound telescopes, offering better views of both planets and deep-sky objects. These telescopes often come with better mounts and include additional accessories.
• $500+: If you're ready to invest more, you'll get larger apertures, sturdier mounts, and features like computerized object tracking. This price range is ideal for those who want serious stargazing capabilities and a scope that can grow with them for years or decades to come.

Whatever your budget, it's important to prioritize what you want to observe and the features that matter most to you.

A Legacy of Innovation

Since 1960, Celestron has consistently delivered a blend of optical performance, cutting-edge technology, and durability, making it a top choice for those seeking quality and dependability.

Want to know more? Discover Celestron's rich history of innovation and our innovative technologies.