Best Telescope For Viewing Planets And Galaxies – Complete Guide 2022


Welcome to our Telescopes Lab! Are you one of those curious fellows who always seek a way to explore that blinking stars and mysteries exists in the sky? If the answer is yes, you should have the best Telescope For Viewing Planets And Galaxies to fulfill your desire.

However, the word “best” means a lot depending on certain aspects. Maybe you’re a budget shopper, or a newbie astronomer, picking the best telescope for adults might not be suitable for you.

Even though that is entitled as an excellent product. Seems too complex, right? Don’t worry, we have done the job for you. You just need to check the products listed below and choose any of them depending on your preference.

10 Best Telescope For Viewing Planets And Galaxies – Our Top Rated List:

We have gathered the top 10 best telescopes currently available in the market. All of these products have been selected based on user experience and endless research.

Quick Comparison Table

Preview Product Name Type Size Weight Aperture
Celestron NexStar 6 SE Telescope Schmidt-Cassegrain 32 x 26 x 12 inches 21 pounds 150 mm (5.91”)
Celestron NexStar 130SLT Telescope Newtonian Reflector 28 x 12 x 8 inches 11.4 pounds 130mm (5.12”)
Orion 10014 SkyQuest XT4.5 Telescope Reflector 41 x 13.5 x 13 inches 22 pounds 114mm
Celestron AstroMaster 102AZ Telescope Refractor 36 x 30 x 50 inches 2.43 pounds 102mm (4.0”)
Gskyer 600x90mm AZ Telescope Refractor 38 x 12 x 8 inches 17.89 pounds 90mm
Celestron PowerSeeker 127EQ Telescope Newtonian Reflector 29.92 x 16.73 x 8.46 inches 28 pounds 127 mm (5")
Zhumell Z130 Telescope Reflector 24 x 18 x 18.5 inches 18.6 pounds 5” (130 mm)
Orion 9823 Telescope Maksutov-Cassegrain 21.4 x 9.9 x 9.3 inches 5.07 pounds 102mm
Sky Watcher Classic 200 Dobsonian Telescope Reflector 49 x 27 x 18 inches 31.5 pounds 152mm
SOLOMARK 130EQ Telescope Newtonian Reflector 27.7 x 17.1 x 14.1 inches 33.4 pounds 130mm

Celestron NexStar 6SE Computerized Telescope


Highlighted Features:

  • It features the iconic orange tube design of Celestron
  • The 6-inch primary mirror offers optimum light-gathering capacity
  • Fully-automated go to mount system
  • Single fork arm design allows easy assembly and breakdown
  • Comes with a free starry night software

Are you in search of the best telescope for viewing planets and galaxies for beginners? Yes, you’re a novice astronomer, that doesn’t mean you have to stick with those complicated telescopes and end up with just a mess.

That is why numerous amateur astronomers have chosen the Celestron NexStar 6SE Computerized Telescope as their first telescope. So, what makes this telescope so special? Let’s explore.

First up, this is an entry-level telescope, and it has been designed primarily for beginners. Maybe it’s not going to be a favorite to all kinds of observers, it just performs outstanding at its range. Hence, it has become one of the most demanding telescopes for beginners.

The Celestron NexStar 6SE features a fully-automated go to mount system that makes it more practical and easy to maneuver. Alongside, the rich database with 40,000 celestial objects helps to locate and track objects automatically.

Weighing only 8 pounds, this is one of the lightest telescopes. After assembly, the whole setup weighs about 30 lbs. The interesting fact is that you can easily assemble or break down the setup once finished. Guess why? Its single fork arm design. This design not only facilitates easy assembly but also makes it super portable.

√Included Plossl Eyepiece

√Super portable

√Sturdy design

√Easy to set up

√SkyAlign technology

√Fully-automated mount system

⊗Batteries tend to drain fast

⊗Quite expensive

Celestron NexStar Newtonian Reflector 130SLT Telescope


Highlighted Features:

  • It features a computerized database that has over 40,000 celestial objects
  • Compatible with 2″ eyepieces
  • A fully computerized Altazimuth mount
  • The compact design makes it easy to transport
  • 130 mm aperture allows adequate light
  • Compatible with 2-inch eyepieces

Here is another tremendous edition from the Celestron NexStar SLT Series. If you’re after the best budget telescope for viewing planets and galaxies, the Celestron NexStar Newtonian Reflector 130SLT Telescope should be on your list.

This telescope comes as a blessing for those who want a computerized telescope without breaking the bank. Technically, the Celestron NexStar 130SLT is a Newtonian Reflector telescope.

What’s the specialty of Newtonian design? Well, this is a kind of technology that produces precise views of any object with incredible color correction. It features a 130 mm aperture that allows optimum amount of light and creates a lively view of the solar system and other celestial objects.

Using this telescope, you’ll be able to observe the Moon, Jupiter’s cloud bands, and Saturn’s rings with greater details. This model comes with Celestron’s proprietary SkyAlign technology that helps you to observe that dreamy sky within minutes.

Alongside, it has a rich database of 40,000 preprogrammed celestial objects. Therefore, you just need to wait until the telescope is aligned, and you’re ready to explore everything available to observe.

√Newtonian Reflector optical design

√Free Starry Night Software:

√Easy to use

√Reasonable price

√High-Quality Optics

√SkyAlign technology

⊗Small mount

⊗Prone to misalignment

Orion 10014 SkyQuest XT4.5 Dobsonian Telescope

Orion 10014 SkyQuest XT4.5 Dobsonian Telescope

Highlighted features:

  • It features a compact and lightweight design.
  • A perfect Dobsonian Telescope
  • 900 mm focal length and 4.5″ aperture
  • Sturdy Dobsonian base
  • Handy navigation knob for easy maneuvering
  • Collects a whopping 260% more light than most other beginner-level 60 refractor telescopes
  • Comes with two eyepieces

Do you love to enjoy the sparkling stars in the night sky far from home? There are many people like you who prefer a portable telescope to travel away. We have listed the Orion 10014 SkyQuest XT4.5 Dobsonian Telescope for those traveler sky explorers like you.

The Orion 10014 SkyQuest XT4.5 is a Dobsonian Telescope. However, we found this unit far better due to its superior accessories and better mount system, which keeps it apart from most other conventional tabletop Dobsonians.

Whilst it sets on the budget-friendly telescope segments. That’s quite satisfying indeed. This telescope offers higher collimation tolerances and sharper imaging that you may hardly find in a budget telescope.

However, its decent price tag is not the most highlighted factor. Then what? Yes, the portability. This telescope has been designed to offer a great experience to those who love to travel and explore sky objects.

This telescope features a combination of 900 mm focal length and 4.5″ aperture that allows users to observe the lunar craters along with bright nebulas, planets, and galaxies. This unit can collect a whopping 260% more light than typical 60 mm refractor telescopes for beginners.

√Easy to maneuver

√Excellent portability

√Great value for money

√Sturdy base

√Included eyepieces

⊗Narrow field of view

⊗Mediocre finderscope

Celestron AstroMaster 102AZ Refractor Telescope


Highlighted Features:

  • Features a fully-coated glass optics
  • Lightweight yet sturdy frame
  • The tripod is completely adjustable
  • Included a StartPointer red dot finderscope with two eyepieces
  • It features a fully-coated 102 mm primary mirror
  • Altazimuth mount allows smooth and precise pointing

Here is the best refractor telescope for viewing planets and galaxies on our list. We can’t resist ourselves to add another Celestron telescope. The Celestron AstroMaster 102AZ is a refractor telescope that has been designed for those who want a telescope not only for stargazing but also to seek a closer view.

This refractor telescope features a wonderful combination of 1000 mm focal length and 102 mm aperture that provides a clearer view of celestial objects. As Celestron telescope, you shouldn’t worry about durability and reliability at all.

No matter you’re a beginner or an amateur astronomer, you can operate this telescope without any complexity. Its 102 mm aperture means this telescope is on the heavier side. However, it’s still quite portable. The whole unit weighs about 14.1 lbs.

Setting up this telescope is convenient enough for newbie astronomers. It features an altazimuth mounting system with an altitude clutch for easy tilting at any angle.

√Enhanced clarity and crispness

√Easy tracking

√Accessory tray

√Rugged tripod

√Easy to use

√Reasonable price

√Quick setup

⊗May struggle in astrophotography

⊗Not much travel-friendly

Gskyer 600x90mm AZ Astronomical Telescope


Highlighted Features:

  • Fully coated optics glass lens and high transmission coatings
  • Comes with three replaceable eyepieces
  • Adjustable aluminum tripod for different viewing angles
  • No tools are required for the setup
  • The antireflection blue film coating enables a clearer view
  • The tube ring is safely screwed for the protection of the telescope
  • Two high-power eyepieces

Are you in quest of the best telescope to see planets and galaxies for your first astronomy project? We’re quite confident that the Gskyer 600x90mm AZ Astronomical Telescope won’t disappoint you at all. What’s the reason behind our confidence? Let’s dig it out.

The Gskyer 600x90mm AZ is a refractor telescope. However, it features an antireflection blue film coating on the optics glass lens that sets it apart from most other refractor telescopes. Gskyer has designed this unit carefully to ensure its safety when you’re outside the home.

For instance, the tube ring has been screwed precisely to the dovetail bracket for maximum security. At the same time, this setup helps to focus objects more easily. Alongside, the aluminum tripod is completely adjustable.

So, beginners won’t face any difficulty adjusting the viewing angle. You can adjust the tripod height from 31.5 to 49 inches. The most interesting fact is that this unit comes with three replaceable eyepieces.

√Solid construction

√Anti-refection blue film coating

√Easy to set up

√Wide aperture

√Suitable for both experienced and novice users

√Clear and crisp images

⊗Relatively high price

⊗No software attachment

Celestron PowerSeeker 127EQ Telescope


Highlighted Features:

  • Features a Manual German equatorial mount
  • A slow-motion altitude rod has been added for precise and smooth pointing
  • The adjustable rod allows convenient positioning
  • Comes with two additional eyepieces
  • The package includes plenty of accessories
  • No tools are required for mounting

Are you one of those beginner astronomers who want to grab the best telescope to see planets and galaxies? Introducing the Celestron PowerSeeker 127EQ Telescope. No matter you’re a beginner or an intermediate astronomer, this telescope has everything to charm you.

This Newtonian reflector telescope would be the best option as your first telescope. So, why should you choose this one? This unit comes with an additional corrector lens placed between the spherical mirrors to avoid unexpected blurring.

That means you’ll enjoy objects with more clarity. Alongside, its 127 mm aperture helps you to spot nebulas, planets, satellites, clusters, stars with clearer vision. Another attractive fact about this unit is its compact design, which is quite important for beginners.

The Power Seeker 127 EQ features a smaller tube that helps to maintain minimal weight. This telescope is able to zoom up to 250x. This is perfect for enjoying the night sky indeed.

√Sturdy construction

√Included eyepieces

√Lightweight and compact design


√Easy assembly

√3x Barlow lens

⊗Unstable locking screws

⊗Wobbly tripod

Zhumell Z130 Portable Altazimuth Reflector Telescope


Highlighted Features:

  • Parabolic mirror provides sharper and brighter images by eliminating visual defects
  • The combination of f/4 focal ratio and wide field of view makes it ideal for observing various celestial objects.
  • Compact and lightweight
  • Comes with a red dot finderscope
  • Includes two eyepieces

Portability and ease of use might be the perfect combo for any amateur astronomer. Thankfully, both of these you’ll get from the Zhumell Z130 Portable Altazimuth Reflector Telescope.

However, we have gathered so many entry-level telescopes on our list, what makes this one special? The Zhumell Z130 is an Altazimuth Reflector Telescope. That means, it is designed for a very detailed image of any object.

Nevertheless, reflector telescopes require a bit of maintenance. The same thing goes for this model as well. This unit features a Dobsonion mount that makes the set-up process quite easy.

The package includes two Kellner eyepieces along with a red dot finder. The Parabolic mirror provides sharper and brighter images by eliminating visual defects. Whilst, the combination of f/4 focal ratio and wide field of view makes it ideal for observing various celestial objects.

√Excellent portability

√Easy to use

√Very affordable

√Great optics

√Included accessories


⊗Not suitable for astrophotography

⊗Requires maintenance

Orion 9823 Apex 102mm Maksutov-Cassegrain Telescope


Highlighted Features:

  • Compact Maksutov-Cassegrain Telescope suitable for viewing celestial objects at both day and night
  • The combination of 1300 mm focal length and 102 mm aperture ensures fantastic vies
  • The size is quite small to store conveniently
  • Includes a 25 mm Sirius Plossl 1.25″ eyepiece, 45-degree correct-image diagonal, 6×26 correct-image finder scope, Starry Night software, and a carrying case

Meet something exceptional, the Orion 9823 Apex 102 mm is a compact yet powerful Maksutov-Cassegrain Telescope that might charm any astronomer. Its magnification and light gathering capacity are five times greater than traditional telescopes of the same size.

Unlike most other conventional telescopes, this model is constructed with precision optical glass and enameled aluminum. The most significant factors of this unit are its incredible details and abbreviated simplicity.

Its rugged construction and high power indicate a bit heavier weight. However, it’s still quite portable. You can simply store it on a bookshelf when it is not in use. Using this telescope, you will be able to observe planets, the moon, and bright deep-sky objects.

At the same time, it is suitable for viewing terrestrial views of wildlife and scenery. The whole package comes with several accessories including a 25 mm Sirius Plossl 1.25″ eyepiece, 45-degree correct-image diagonal, 6×26 correct-image finder scope, Starry Night software, and a carrying case.

√Excellent power

√Detailed view

√Easy to set up

√High aperture

√Reasonable price


⊗Does not include a tripod or mount

Sky Watcher Classic 200 Dobsonian Telescope


Highlighted Features:

  • Features patented handles for precise movements effortlessly
  • Both primary and secondary mirrors have multi-coating
  • Borosilicate mirrors provide exceptional views
  • Proprietary Teflon bearings help to ensure smooth movement
  • Weighs only 45 pounds after assembly.
  • Max focal length is 1200 mm.

If you’re in the market to find a solid telescope without stretching your budget, the Sky-Watcher Classic 200 Dobsonian Telescope might be the one you’re looking for. An 8-inch telescope like this one could be the best telescope to see galaxies for amateur astronomers.

The Sky-Watcher Classic 200 Dobsonian Telescope features two mirrors. Among them, the paraboloidal primary mirror works for reducing spherical aberration. Whilst, the secondary mirror deals with the diffraction spikes.

However, you should be aware of the high maintenance of reflective telescopes. So, what about the image quality? As we know, this telescope feature a shorter focal measuring 1200 mm. This focal length delivers incredible images with more clarity.

You’ll receive some useful accessories in the package that include One 25 mm Plossl eyepiece, One 10 mm Plossl eyepiece, Eyepiece Tray, 8×50 RA Viewfinder Finderscope, two-year warranty certificate.

√Easy to set up

√Included accessories

√Efficient tracking

√Wide aperture

√Fairly lightweight

⊗The finderscope could be better

⊗Not portable

SOLOMARK 130EQ Newtonian Reflector Telescope


Highlighted Features:

  • Large 130 mm aperture and excellent light-gathering capacity
  • Features German Equatorial mount system along with fine-turned control cables
  • The high-quality aluminum tripod is adjustable
  • Comes with an extra tray to store essential kits
  • The package includes a 1.5X Erecting Barlow Lens, Transmission Moon Filter, 2 High-quality Eyepieces, a Cellphone Adapter.
  • The stable tripod design allows more precise and smooth observation of celestial objects.

Are you a professional astronomer and need the best telescope for adults viewing planets and galaxies? We have a special model for astronomers like you. Check the SOLOMARK 130EQ Newtonian Reflector Telescope. Hopefully, it will make your astronomy projects more enjoyable.

This telescope features a large 130 mm aperture along with good light collecting ability and high resolution that makes it suitable for viewing and observing deep space celestial objects.

The frame is light yet sturdy. The whole surface is covered with carbon fiber that provides a sophisticated look. The objective lens features fully-coated glass optics that allows a brighter and more detailed image.

There is a high-quality large-diameter adjustable aluminum alloy tripod that facilitates easy setup. Alongside, the included tray helps to store temporary attachments. You’ll also receive, a 1.5X Erecting Barlow Lens, Transmission Moon Filter, 2 High-quality Eyepieces, a Cellphone Adapter.

√High-Quality Optics

√Durable construction

√Greater efficiency

√Included accessories

√German Equatorial Mount

√Stable Tripod

⊗Phone attachment doesn’t work that great

⊗Tripod and stabilizer gear are very cheaply constructed

Consumers Guide:

Basic Terminology

Never before have telescopes for Amateur astronomy been more powerful or affordable. There’s a huge range on offer from the Reflector, Refractor, Dobsonian, Newtonian, Schmidt Cassegrain, Maksutov Cassegrain, catadioptric to Spyglass. There are no restrictions on the objects you can view – even as an amateur astronomer you can look at the same stars, planets, supernovae, asteroids, and comets as the professional observers.

If you are new to the world of astronomy, it may be useful to familiarize yourself with some of the basic terminologies, used to describe different features, functions, and types of telescope, as this will be critical when it comes to to purchasing or comparing telescopes. Some of the more common terms are listed below and a brief explanation of each follows thereafter.

  • Aspect Ratio
  • Aperture
  • Refractors
  • Reflectors
  • Catadioptric
  • Eyepieces
  • Magnification
  • Optical Coatings
  • Finder Scopes
  • Alt-Azimuth Mounts
  • Equatorial Mounts
  • Photography
  • Spyglass

Aspect Ratio

An aspect ratio is a ratio between the width and height of a picture.


An aperture is a device that controls the amount of light admitted.

Bringing light to the eyepiece is a very important quality of a telescope, and light gathering ability is limited by the aperture or diameter of a telescope’s mirror or lenses. A telescope with a 70mm objective lens collects 100 times as much light as the human eye, and an 8-inch telescope boosts the eye’s light -gathering ability by nearly 1000 times. Simply put, a larger telescope produces images that are brighter, bigger, and sharper.


A refractor telescope is a type of optical telescope that uses a lens as its objective to form an image (also referred to as a dioptric telescope). The refractor telescope with a lens in the front and an eyepiece in the back was invented by Galileo 400 years ago. Small refractors with objective lenses from 60mm to 90mm area unit popular starting observers as a result of they provide crisp, high distinction views of bright objects. A 70mm refractor on an Alt-Azimuth mount is a good first telescope for a student because it is inexpensive, easy to use, and offers pleasing detail on the Moon and planets. Larger refractors can be troubled by “chromatic aberration” also known as false color or blue fringing unless the objective lens is made of exotic and expensive ED or Fluorite glass.


A reflector is an optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece. Reflector telescopes provide additional light-gathering power per dollar than any other telescope style, but they require a little more patience to use because mirrors need to cool to the temperature of the night air before they manufacture their best pictures. The mirror may also need to be aligned or “collimated” sometimes. Dobsonian reflectors up to 8 or 10-inch aperture will be handled simply by one person and are massive enough to point out hundreds of galaxies and resolve globular clusters into thousands of individual stars.


The compound or catadioptric telescopes are a modern invention. They use a combination of mirrors and lenses to “fold” a long optical path into a compact body. Catadioptric telescopes are well suited for use with high-tech computerized mounts. These computerized mounts help find thousands of stars, galaxies, and galactic nebula, but they need a power source, such as a rechargeable battery, because internal AA batteries only last a few hours. Computerized telescopes featuring 90mm to 8-inch Catadioptric designs are popular because they offer a terrific combination of power and portability.


Most telescopes today come with 1 or 2 eyepieces in the 1.25-inch size. Changing the lens changes the magnification of the telescope as a result of the magnifying power is equal to the focal length of the telescope divided by the focal length of the lense. A telescope with a 900mm focal length and a 10mm eyepiece can magnify the picture by 90 times. (900mm/10mm = 90x magnification). Plossl eyepieces have become the most popular because they provide superb performance for a reasonable price. Avoid telescopes that use the older style 0.96″ size eyepieces because they often use H type or Huygenian eyepieces which are notorious for fuzzy images and a narrow field of view.


Sometimes manufacturers will list a specification called “maximum useful magnification” which is usually about 50 times the telescope aperture in inches or 2 times the aperture in millimeters. A 70mm refractor will show good lunar detail up to 140x magnification; If you extend the magnification beyond 140x it may show an image that is larger but fuzzier. Watch out for small telescopes that claim 500x magnification, it may be impossible to see anything at that power.

Optical Coatings

These are coatings put on the glass surfaces to minimize the loss of light and produce a better image result.

The plain glass reflects light. Telescope lenses and eyepieces may lose a significant amount of light due to reflection at each optical surface. Optical designers solve this problem by adding anti-reflection coatings to glass surfaces. Multi-layer coatings can be more efficient than single-layer coatings. The term “multi-coated” often means that one surface has multi-layer coatings while internal surfaces may have single-layer coatings. “Fully multi-coated” means that each air-to-glass surface has multi-layer anti-reflection coatings.

Finder Scopes

A Finderscope is usually a low power small scope mounted on the main scope that allows you to manually locate the object to be viewed before using the eyepiece to view the object under greater magnification. Locating an object through the eyepiece can be difficult simply because of the narrow field of view.

Red-dot finders are perfectly suited for finding bright objects like the planets and moon. A 6×30 or a 9×50 optical finder scope is a small scope with a crosshair that allows the telescope to be aimed precisely.

Alt-Azimuth Mounts

A sturdy telescope mount is essential for getting a good view. The Alt-Azimuth mount is light and easy to use because it moves up and down (altitude) or side to side (azimuth). The drawback is that an Alt-Azimuth mount cannot track planets and stars unless it has a built-in pc. As soon as you get the planet or a moon-centered within the lens system, the Earth’s rotation causes it to drift toward the edge. For this reason, manual Alt-Azimuth mounts work best for smaller telescopes and lower magnification.

Equatorial Mounts

Sometimes called the German Equatorial Mount (GEM) because it was invented in Germany. An equatorial mount uses counterweights to balance the telescope, allowing the telescope to track stars and planets with a single slow-motion knob or with a motor drive. A good equatorial mount can cost more than the optical parts of a telescope, but it will keep a planet-centered in the eyepiece at high power or even allow photography through the telescope.


After you get started with your telescope you may want to start taking pictures. But be aware that those pictures you see in magazines took years of practice to achieve. The Moon is a good place to start. For close-ups of the planets, a modified webcam like Celestron’s NexImage is a good choice. Combining a web-cam and image processing software can produce amazing images of the planets, but it still takes a lot of practice to get the best results!


This is another term for a hand-held telescope for terrestrial observation

What is a Telescope?

In its simplest form, a telescope is a light-gathering instrument. Its purpose is to make distant objects appear larger/nearer.

Here is a more formal definition: An optical instrument designed to make distant objects appear nearer, containing an arrangement of lenses, or of curved mirrors and lenses, by which rays of light are collected and focused and the resulting picture magnified.

Who uses a telescope?

Just about anyone can use a telescope nowadays. Because of the advances in technology and the general availability of telescopes both the hobbyist and the extreme enthusiast can view the same objects as professional astronomers.

Buying Considerations

Here are some questions you should ask yourself before handing over any cash for a telescope:

  1. How much effort are you willing to place learning the sky? If you are able to navigate your way around the night skies by star-hopping, then you will be able to opt for a telescope that is smaller, cheaper, lighter, more portable than the sophisticated computerized models.
  2. How much effort are you willing to spend on your observing skills? It takes time and practice to be able to see fine detail or any detail in celestial objects. But the rewards are well worth it – are you willing to put in the effort? Experienced observers can see details will a less powerful scope that beginners will miss with a much more powerful and more sophisticated scope.
  3. How much effort will it take to get your scope from where you house it to where you use it? Are you prepared to do this? A smaller more portable scope that you use frequently will be of more benefit than one that looks great, but remains unused because it is too cumbersome or takes too much effort to set up.
  4. Don’t be dazzled by technology – if the technology is a genuine feature that you are looking for and want in your telescope – great – go for it. But don’t buy expensive equipment, because it sounds great, looks great or just for the sake of having it (unless that’s the reason you are buying it of course).
  5. Consider the reason you are buying the scope – is it for observation or astrophotography? Astrophotography is a specialized area of observation and an expensive hobby. Be prepared for the outlay!
  6. Check if you can join a club, try out some scopes, get a feel for the hobby before purchasing. You might save yourself some money or get some great advice from people who use the technology rather than just write about it!

Frequently Asked Questions

Q: Who invented the telescope?

A: The telescope was invented by Prince Fredrick Sesi in the year 1611.

Q: Where does the word telescope come from?

A: “Telescope” comes from the 2 Greek words, “tele” means “far” and “skopein” means “far-seeing”

Q: How does it work?

A: The basics behind the telescope are the ability of a lens to redirect light to a desired particular point. Different lenses are used for different desired magnifications of objects present in the universe. A refracting telescope uses a convex lens but has magnification limitations. A reflecting telescope uses a concave lens and doesn’t have the same limitations as the refractors.

Refracting telescopes depend on one amazing fact. As light passes through the glass, it slows down. Slowing down a light beam makes it bend. When a light beam passes through a glass lens within a telescope, it moves toward the lens. When the light beam comes out on the opposite side, it’s best!

The shape of the lens means light close to the top of the lens is bent down and light near the bottom of the lens is bent up. Somewhere within the tube, the light beams cross, but before they can spread out again the eyepiece lens bends the light beams once more and sends them to the eye.

Q: What’s the most common type of telescope?

A: Telescope covers a wide range of instruments that is a bit difficult to define. Every telescope has the ability to collect electromagnetic radiation so it can be studied. The most common type of telescope is an optical telescope.

Q: What is the best telescope for viewing planets and galaxies?

A: We introduced here world best top 10 planets and galaxies viewing telescopes here. You can easily choose any telescope as your needs.

Q: What does refraction mean?

A: Telescopes came into being when scientists discovered the property of light and its characteristic of deviating when it passes from one medium to another which is more commonly known as the property of refraction.

Q: What’s the difference between a Reflector and a Refractor telescope?

A: Refracting telescopes are simpler than reflecting telescopes, but they have an important limitation. Mind that the light passing through the glass lens gets bent. It happens that different colors are bent by different amounts, and that causes the light to become unfocused. Sir Isaac Newton solved this problem by replacing the lenses with mirrors.

When light hits a mirror, it doesn’t bend. Instead, it bounces off. Just like a ball bouncing off a wall, a light beam comes off a mirror identical approach it comes in. In the alternative, the angle equals the angle out. And that rule is true for all the light, no matter its color.

The primary mirror in a reflecting telescope is curved just the right amount to bounce everything the light onto the secondary mirror. From there, the light passes through the eyepiece lens that bends the light into the eye.

Interesting Facts

Probably the world’s most famous telescope today is the Hubble Space Telescope. It is a reflecting telescope that orbits 600 kilometers above the Earth. Because it is above the Earth’s atmosphere, Hubble is able to see far distant objects more clearly than any telescope in history.

Telescopes are not limited to just the light we can see. Invisible kinds of light, like radio waves and x-rays, are also important to astronomers. Each time astronomers use a new kind of light to view the universe; they make new and unexpected discoveries. The first time scientists used x-rays to look at the sky, they discovered black holes. When they used radio waves, they found the light leftover from the birth of the universe, the event we call the Big Bang.

X-ray telescopes are possibly some of the strangest devices ever invented. Because x-rays are so powerful, they would pass straight through any mirror they hit straight on. In order to capture x-rays, scientists use the same principle you use when you skip a rock across a pond. The x-rays come in at an angle, touching the mirror with a glancing blow that focuses them onto the detector. To increase the number of x-rays collected, the telescopes are designed like nested barrels, with the insides of the barrels all covered in mirrors.

Food for thought

Currently, scientists all over the world are working on new kinds of telescopes that don’t use light at all. Instead, these telescopes are searching for gravitational waves. Once these waves are detected, the chances are we will have a whole new set of strange and amazing discoveries to ponder.

However, you don’t need a multi-million dollar orbiting telescope or a gravitational wave observatory to make some fantastic discoveries of your own. Even with a low-power telescope you can make some of the same observations that Galileo made all those years ago, see the craters on the Moon, spot the phases of Venus, marvel at the amazing rings of Saturn, observe the four moons of Jupiter, still called the Galilean satellites.

Safety Note

NEVER look at the Sun through a telescope or any other optical device. You can permanently damage your eyes!