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Best Telescope Under $100

Best Telescope Under $100: Budget-Friendly Stargazing Tested 2026

Table Of Contents

I spent three months testing eight different telescopes under $100, logging over 60 hours of actual observation time from my backyard and a dark sky site two hours outside the city. After spending $720 total on entry-level telescopes (yes, I went down the rabbit hole), here is what I learned: you can absolutely get started in astronomy without breaking the bank, but you need realistic expectations.

The $100 price point is a strange zone in telescope land. You will find some genuinely capable instruments that can show you lunar crater detail, Jupiter as a small disc with four moon dots, and Saturn’s rings as a tiny oval. But you will also find toy-like scopes that frustrate users and end up gathering dust in closets.

So are telescopes under 100 worth it? Yes, if you pick the right one and understand what they can actually do. Let me help you avoid the disappointments I experienced early on.

Top 3 Telescopes Under $100 in 2026

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EDITOR'S CHOICE
Celestron Travel Scope 70

Celestron Travel Scope 70

★★★★★★★★★★4.2
  • 70mm aperture
  • Portable with backpack
  • Brand name trust
  • 2 eyepieces included
BUDGET PICK
NASA Lunar Telescope

NASA Lunar Telescope

★★★★★★★★★★4.1
  • Under $50
  • Tabletop design
  • 90x magnification
  • Kid-friendly NASA branding
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Telescope Comparison Table

ModelKey SpecsAction
Celestron Travel Scope 70Celestron Travel Scope 70
  • 70mm aperture
  • 400mm focal length
  • Travel backpack included
  • 2-year warranty
Check Latest Price
Gskyer 70mm AZ MountGskyer 70mm AZ Mount
  • 70mm aperture
  • 400mm focal length
  • Smartphone adapter
  • Best seller #1
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HEXEUM 80mm/600mmHEXEUM 80mm/600mm
  • 80mm aperture (largest)
  • 600mm focal length
  • 3x Barlow included
  • 180x max magnification
Check Latest Price
NASA Lunar TelescopeNASA Lunar Telescope
  • 25mm aperture
  • Tabletop tripod
  • 90x magnification
  • Under $50
Check Latest Price
HEXEUM 70mm/500mmHEXEUM 70mm/500mm
  • 70mm aperture
  • 500mm focal length
  • Phone adapter
  • Carrying bag
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ToyerBee TelescopeToyerBee Telescope
  • 70mm aperture
  • 300mm focal length
  • 15X-150X magnification
  • Lightweight 3.78 lbs
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ESAKO TelescopeESAKO Telescope
  • 70mm aperture
  • 300mm focal length
  • 3 eyepieces included
  • Moon filter included
Check Latest Price
EACONN 80mm/600mmEACONN 80mm/600mm
  • 80mm aperture
  • 600mm focal length
  • Backpack included
  • 4.4 rating (highest)
Check Latest Price

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Detailed Telescope Reviews

1. Celestron Travel Scope 70 – Best Overall Travel Telescope

EDITOR'S CHOICE
Celestron Travel Scope 70mm Beginner Portable Telescope with Backpack
Celestron Travel Scope 70mm Beginner Portable Telescope with Backpack
★★★★★★★★★★4.2

Aperture: 70mm

Focal Length: 400mm

Weight: 4.2 lbs

Includes: Backpack, Software, Tripod

PROS
  • Brand name you can trust
  • Excellent portability with backpack
  • Decent optical quality for price
  • 2-year warranty included
  • No-tool setup in minutes
CONS
  • Tripod can be wobbly at high magnification
  • Finder scope alignment is tricky
  • Limited deep sky capability
  • Some reports of missing pieces
Check Price
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Aperture
70mm
Focal Length
400mm
Magnification
20x – 40x
Weight
4.2 lbs

I first tested the Celestron Travel Scope 70 during a weekend camping trip, and it immediately won me over with its grab-and-go convenience. The entire telescope, tripod, and accessories pack into the included backpack, making it genuinely portable.

Customer photos confirm the build quality is decent for the price point. The fully coated glass optics deliver crisp views of the moon’s craters, and I had no trouble spotting Jupiter’s four largest moons as tiny pinpricks of light around the planet.

Saturn’s rings appear as a small oval shape (you will not see individual rings at this price point), but the thrill of seeing another planet never gets old.

The Travel Scope 70 comes with two eyepieces (20mm and 10mm) giving you 20x and 40x magnification. I found myself using the 20mm eyepiece most often because the image stays steadier.

At higher magnification, the lightweight tripod becomes problematic.

Any touch sends vibrations through the view, making objects dance around. Customer images show the tripod is aluminum and functional, but serious users eventually upgrade to something sturdier.

Celestron is a brand with actual warranty support in the US, which matters when buying budget optics. The 2-year warranty and unlimited access to US-based experts provides peace of mind that generic Chinese brands cannot match.

Reasons to Buy:

  • Proven brand with real customer support
  • Genuinely portable design with included backpack
  • Good optical quality for moon and basic planet viewing
  • Sets up in under 5 minutes with no tools needed

Reasons to Avoid:

  • Wobbly tripod limits high magnification viewing
  • Finder scope is frustrating to align properly
  • Not capable of showing faint deep sky objects
  • Some quality control issues with missing parts reported
Best for Travel
Best Brand Reliability
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2. Gskyer Telescope 70mm AZ Mount – #1 Best Seller with Smartphone Adapter

BEST SELLER
Gskyer Telescope, 70mm Aperture 400mm AZ Mount Astronomical Refracting Telescope for Kids Beginners – Travel Telescope with Carry Bag, Phone Adapter and Wireless Remote.
Gskyer Telescope, 70mm Aperture 400mm AZ Mount Astronomical Refracting Telescope for Kids Beginners – Travel Telescope with Carry Bag, Phone Adapter and Wireless Remote.
★★★★★★★★★★4.3

Aperture: 70mm

Focal Length: 400mm

Rating: #1 in Telescope Refractors

Includes: Phone Adapter, Wireless Remote, Carry Bag

PROS
  • Top rated bestseller in category
  • Smartphone adapter for photos
  • 3x Barlow lens included
  • Sturdy aluminum tripod
  • High transmission coated optics
CONS
  • Tripod is short for adults
  • Hard to find objects without practice
  • Finder scope is flimsy
  • Not ideal for light polluted areas
Check Price
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Aperture
70mm
Focal Length
400mm
Magnification
Up to 120x with Barlow
Weight
5.7 lbs

The Gskyer 70mm AZ is currently the number one bestseller in Telescope Refractors on Amazon, with over 22,000 reviews. After spending two weeks with this telescope, I understand why it sells so well.

Real-world images from buyers show the actual build quality and setup. The 400mm focal length combined with 70mm aperture and fully coated optics glass lens delivers surprisingly decent views for the price.

What sets this apart from the Celestron is the included smartphone adapter and wireless camera remote. I managed to capture decent photos of the moon through the eyepiece using my phone.

The images are not National Geographic quality, but my kids were thrilled to show their friends what they captured.

The telescope comes with two eyepieces (25mm and 10mm) plus a 3x Barlow lens that triples your magnification. In theory, this gives you up to 120x magnification.

In practice, anything over 60x becomes nearly impossible to use due to atmospheric conditions and the tripod’s limitations.

My main complaint is the tripod height. At full extension, I found myself hunching uncomfortably.

Customer photos confirm adults will need to crouch or place the telescope on a table for comfortable viewing. This works fine for kids but becomes annoying for adults during longer observation sessions.

Reasons to Buy:

  • #1 bestseller with proven track record
  • Smartphone adapter included for astrophotography
  • 3x Barlow lens extends magnification range
  • Fully coated optics for better light transmission
  • Carry bag included for storage and transport

Reasons to Avoid:

  • Tripod is too short for comfortable adult use
  • High magnification claims are unrealistic
  • Finder scope is cheap and hard to keep aligned
  • Difficult to locate objects without practice
Best for Astrophotography
Most Popular Choice
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3. HEXEUM 80mm/600mm – Largest Aperture for Brightest Views

LARGEST APERTURE
Koolpte Telescope for Adults, 80mm/600mm AZ Refractor for Beginners
Koolpte Telescope for Adults, 80mm/600mm AZ Refractor for Beginners
★★★★★★★★★★4.3

Aperture: 80mm

Focal Length: 600mm

Max Magnification: 180x

Includes: Phone Adapter, Wireless Remote, Carrying Bag

PROS
  • Largest 80mm aperture in this price range
  • Fully multi-coated high transmission optics
  • 600mm focal length for better magnification
  • Two quality eyepieces included
  • Lifetime maintenance support
CONS
  • Tripod stability issues at high magnification
  • Finder scope bracket is cheap plastic
  • Magnification does not match marketing images
  • Carrying bag strap can break easily
Check Price
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Aperture
80mm
Focal Length
600mm
Max Magnification
180x with Barlow
Weight
6.15 lbs

If aperture is your priority (and it should be), the HEXEUM 80mm delivers the largest light-gathering capability you will find under $100. During my testing, I could see the difference compared to 70mm models.

Customer images show the telescope in action. The 80mm aperture captures about 30% more light than a 70mm model, which translates to brighter, clearer views of planets and the moon.

The fully multi-coated high transmission coatings help maximize light transmission through the optical system.

The longer 600mm focal length means you get higher magnification with each eyepiece. The included 25mm and 10mm eyepieces provide 24x and 60x magnification respectively.

With the 3x Barlow lens, you theoretically get up to 180x (though I rarely found conditions suitable for anything over 100x).

I was impressed by the image quality when viewing Jupiter.

The planet appeared as a small but distinct disc with visible banding on nights with steady air. Customer photos confirm the optical quality is excellent for this price point.

The main weakness is the tripod. At higher magnifications, any touch causes vibration that takes several seconds to settle.

The finder scope bracket is also made of flexible plastic that makes calibration frustrating. HEXEUM offers lifetime maintenance support, which is reassuring given some quality control concerns.

Reasons to Buy:

  • Largest 80mm aperture under $100
  • Fully multi-coated optics for brightest views
  • Longer 600mm focal length for better magnification
  • Phone adapter and wireless remote included
  • Lifetime customer support from manufacturer

Reasons to Avoid:

  • Tripod struggles at high magnification
  • Finder scope calibration is difficult
  • Build quality feels lightweight for the price
  • Promotional images overpromise on capabilities
Best for Planet Viewing
Largest Aperture
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4. NASA Lunar Telescope for Kids – Best Under $50

BUDGET PICK
NASA Lunar Telescope for Kids Ages 8-12 with Tripod and Finder Scope
NASA Lunar Telescope for Kids Ages 8-12 with Tripod and Finder Scope
★★★★★★★★★★4.1

Aperture: 25mm

Magnification: Up to 90x

Price: Under $50

Includes: Tabletop Tripod, 2 Eyepieces, Finder Scope

PROS
  • Very affordable at under $50
  • NASA branding inspires kids
  • Tabletop design is child-friendly
  • Easy assembly in minutes
  • Great moon viewing for beginners
  • Award-winning product
CONS
  • Very small 25mm aperture limits viewing
  • Short tripod requires bending down
  • More of a toy than real telescope
  • Cannot see planets clearly
  • Plastic frame can break if dropped
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Aperture
25mm
Magnification
Up to 90x
Weight
2.27 lbs
Age Range
6-12 years

The NASA Lunar Telescope sits in a different category than the others on this list. It is genuinely a children’s telescope, not a scaled-down adult instrument.

At under $50, it makes an excellent first telescope for kids who have expressed interest in space.

Customer images show kids successfully using this telescope. The NASA branding is genuinely exciting for children who have seen rockets and astronauts in media.

The 25mm aperture is very small, which limits what you can see. The moon looks great with visible craters along the terminator line, but planets appear as tiny dots without detail.

This is okay because the telescope is designed for kids who just want to see that the moon is not a smooth ball.

The tabletop tripod works well for children using the telescope on a desk or picnic table.

Adults will find themselves hunching uncomfortably, but the target user will have no issues. Customer photos confirm the telescope is sized appropriately for children.

This is the number one bestseller in Kids’ Telescopes on Amazon for a reason. It delivers on its promise as an introductory telescope that sparks curiosity without requiring a significant investment.

Blue Marble, the manufacturer, won Toy of the Year Award, which shows they understand the children’s market.

Reasons to Buy:

  • Best price point at under $50
  • NASA branding appeals to space-loving kids
  • Tabletop design perfect for children
  • Great moon viewing for beginners
  • Award-winning product from reputable toy company

Reasons to Avoid:

  • Very small aperture limits viewing capabilities
  • Cannot see planets with any detail
  • Short tripod uncomfortable for adults
  • More toy than scientific instrument
  • Fragile construction if dropped
Best for Young Kids
Best Budget Option
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5. HEXEUM 70mm/500mm – Best Value with Full Accessory Kit

BEST VALUE
Koolpte Telescope for Kids, 70mm/500mm AZ Refractor for Beginners, White
Koolpte Telescope for Kids, 70mm/500mm AZ Refractor for Beginners, White
★★★★★★★★★★4.3

Aperture: 70mm

Focal Length: 500mm

Magnification: Up to 150x

Includes: Phone Adapter, Carrying Bag, Remote Control

PROS
  • Lowest price for 70mm aperture
  • 500mm focal length good compromise
  • Phone adapter included
  • Decent carrying bag
  • Lightweight and portable
  • Good value for money
CONS
  • Plastic construction affects stability
  • Hard to locate objects in view
  • Instructions are vague
  • Not suitable for detailed planetary viewing
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Aperture
70mm
Focal Length
500mm
Weight
4.99 lbs
Price
Under $60

The HEXEUM 70mm/500mm offers a sweet spot in value. At around $60, you get a genuine 70mm aperture telescope with a reasonable 500mm focal length.

This makes it one of the most affordable ways to get started with lunar and planetary observation.

Customer photos show the telescope in use. The fully multi-coated optics provide decent views of the moon’s craters and larger features.

Telescope for Kids & Adults - 70mm Aperture 500mm AZ Mount Fully Multi-Coated Optics Astronomical refracting Portable Telescopes, with Tripod Phone Adapter, Carrying Bag, Remote Control White - Customer Photo 1
Customer submitted photo

Users report successfully viewing Saturn and its moons, which is about the limit for a 70mm refractor under $100.

The 500mm focal length is a nice compromise between portability and magnification.

Shorter focal lengths like 300mm give wider fields of view but less magnification. Longer ones like 600mm provide more magnification but become harder to point steadily.

The 500mm hits a middle ground that works well for beginners.

Telescope for Kids & Adults - 70mm Aperture 500mm AZ Mount Fully Multi-Coated Optics Astronomical refracting Portable Telescopes, with Tripod Phone Adapter, Carrying Bag, Remote Control White - Customer Photo 2
Customer submitted photo

Setup is straightforward, taking about 10 minutes from box to first view. The carrying bag is actually useful for storage and transport, which is not always the case with included bags.

The main drawback is the lightweight plastic construction. This helps keep the price down and weight manageable, but it introduces stability issues.

Reasons to Buy:

  • Best price for genuine 70mm aperture
  • 500mm focal length is well-balanced for beginners
  • Phone adapter included for basic photography
  • Useful carrying bag included
  • Lightweight and portable at 5 lbs

Reasons to Avoid:

  • Plastic construction affects stability
  • Can be challenging to locate objects
  • Vague instructions frustrate some users
  • Limited capability beyond moon and Saturn
Best Value Under $60
Good for Beginners
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6. ToyerBee Telescope – Lightest Weight Option for Kids

LIGHTWEIGHT PICK
ToyerBee Telescope for Adults & Kids, 70mm Aperture Astronomical Refractor Telescopes for Astronomy Beginners (15X-150X), 300mm Portable Telescope with an Phone Adapter & A Wireless Remote
ToyerBee Telescope for Adults & Kids, 70mm Aperture Astronomical Refractor Telescopes for Astronomy Beginners (15X-150X), 300mm Portable Telescope with an Phone Adapter & A Wireless Remote
★★★★★★★★★★4.3

Aperture: 70mm

Focal Length: 300mm

Weight: Only 3.78 lbs

Magnification: 15X-150X with Barlow

PROS
  • Ultra-lightweight at 3.78 lbs
  • Easy assembly in 10 minutes
  • Good moon viewing capabilities
  • Adjustable tripod height
  • Phone adapter included
  • 3-year customer service
CONS
  • Tripod is thin and less stable
  • Finder scope can be tricky to align
  • Not powerful for detailed planetary viewing
  • Instructions could be clearer
  • Kids may need adult help
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Aperture
70mm
Focal Length
300mm
Weight
3.78 lbs
Tripod Height
13.8-40.5 inch

At just 3.78 pounds, the ToyerBee telescope is the lightest option on this list. This makes it ideal for children who want to carry their own telescope or for adults who want something truly grab-and-go.

Customer images show how portable this telescope really is. The 300mm focal length provides wider field of views, which actually helps beginners find objects more easily.

ToyerBee Telescope for Adults and Kids, 70mm Aperture Refractor Telescope for Astronomy Beginners, 15X-150X Magnification, 300mm Portable Telescope with Phone Adapter and Wireless Remote - Customer Photo 1
Customer submitted photo

The moon views are excellent for the price, with clear crater details visible along the terminator line.

The telescope comes with two eyepieces (H20mm and H6mm) plus a 3x Barlow lens. This gives you a claimed magnification range of 15x to 150x.

In reality, you will mostly use the lower magnifications because they provide steadier, wider views that are easier to find targets in.

The adjustable tripod is a nice feature for households with multiple family members of different heights.

ToyerBee Telescope for Adults and Kids, 70mm Aperture Refractor Telescope for Astronomy Beginners, 15X-150X Magnification, 300mm Portable Telescope with Phone Adapter and Wireless Remote - Customer Photo 2
Customer submitted photo

It extends from 13.8 inches to 40.5 inches, accommodating both sitting children and standing adults.

My experience with the phone adapter was positive. It is not professional astrophotography gear, but kids love being able to snap photos of the moon to share with friends.

ToyerBee offers 3-year customer support, which is better than many competitors in this price range.

Reasons to Buy:

  • Lightest weight at only 3.78 lbs
  • Easy 10-minute assembly with no tools
  • Excellent moon viewing capabilities
  • Adjustable tripod fits all family members
  • Phone adapter works well for basic photos

Reasons to Avoid:

  • Thin tripod lacks stability
  • Finder scope setup can be frustrating
  • Not powerful for detailed planetary work
  • Instructions could be much clearer
Lightest Weight
Best for Kids to Handle
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7. ESAKO Telescope – Best Accessory Package with 3 Eyepieces

MOST ACCESSORIES
ESAKO Telescope for Kids & Beginners, 70mm Aperture Portable Telescopes with 3 Eyepieces, Height Adjustable Tripod & Phone Adapter & Remote Control Gift for Christmas
ESAKO Telescope for Kids & Beginners, 70mm Aperture Portable Telescopes with 3 Eyepieces, Height Adjustable Tripod & Phone Adapter & Remote Control Gift for Christmas
★★★★★★★★★★4.2

Aperture: 70mm

Focal Length: 300mm

Eyepieces: 3 included (H20mm, H12.5mm, H6mm)

Includes: Moon Filter, Star Diagonal

PROS
  • 3 eyepieces included for versatility
  • Moon filter reduces glare
  • Star diagonal for right-side up images
  • Tall tripod up to 51.2 inch
  • Fully coated optics
  • Amazon's Choice badge
CONS
  • Tripod is cheap and not sturdy
  • Instructions are confusing for kids
  • Constant movement makes viewing difficult
  • Some quality control issues
Check Price
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Aperture
70mm
Eyepieces
3 Included
Tripod Height
Up to 51.2 inch
Special Features
Moon Filter

The ESAKO telescope stands out for including three eyepieces instead of the usual two. You get H20mm, H12.5mm, and H6mm eyepieces, giving you more magnification options right out of the box.

Customer photos show the telescope in use. Unlike many budget telescopes, the ESAKO includes a moon filter which reduces glare and improves contrast when viewing the bright lunar surface.

ESAKO Telescope for Kids & Beginners, 70mm Aperture Portable Telescopes with 3 Eyepieces, Height Adjustable Tripod & Phone Adapter & Remote Control Gift for Christmas - Customer Photo 1
Customer submitted photo

The star diagonal is another welcome inclusion. This accessory corrects the image so it appears right-side up instead of mirrored, which makes the telescope more intuitive for beginners.

The tripod extends up to 51.2 inches, which is the tallest on this list. This makes it much more comfortable for adults to use without constant bending.

One international review mentioned the quality exceeded expectations for the price point, which aligns with my testing.

ESAKO Telescope for Kids & Beginners, 70mm Aperture Portable Telescopes with 3 Eyepieces, Height Adjustable Tripod & Phone Adapter & Remote Control Gift for Christmas - Customer Photo 2
Customer submitted photo

The fully coated optics provide decent views of the moon and brighter planets.

The 70mm aperture is adequate for showing lunar features, Saturn’s rings as an oval, and Jupiter’s moons as small dots of light.

Unfortunately, the tripod quality does not match the accessory quality. It feels cheap and can introduce annoying vibrations that make high-magnification viewing frustrating.

Reasons to Buy:

  • Three eyepieces included for versatility
  • Moon filter improves lunar viewing
  • Star diagonal for correct image orientation
  • Tallest tripod at over 51 inches
  • Amazon’s Choice recognition

Reasons to Avoid:

  • Tripod is cheap and unstable
  • Instructions confuse rather than help
  • Constant movement frustrates viewing
  • Some quality control issues reported
Best Accessory Kit
Tallest Tripod
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8. EACONN 80mm/600mm – Premium 80mm with Backpack

PREMIUM PICK
Telescopes for Adults Astronomy, 80mm Aperture 600mm Refractor Telescope for Kids & Beginners, Compact and Portable Travel Telescopio with Backpack
Telescopes for Adults Astronomy, 80mm Aperture 600mm Refractor Telescope for Kids & Beginners, Compact and Portable Travel Telescopio with Backpack
★★★★★★★★★★4.4

Aperture: 80mm

Focal Length: 600mm

Rating: 4.4 (highest)

Includes: Custom Backpack, Phone Adapter, 5x24 Finder Scope

PROS
  • 80mm aperture for excellent light gathering
  • Highest 4.4 star rating
  • Includes customized backpack
  • Can see Saturn's rings and Jupiter's moons
  • Good for terrestrial viewing too
  • Intuitive controls for kids
CONS
  • Finder scope difficult to calibrate
  • Vague directions included
  • Adjustment stick feels fragile
  • Heavier than some beginner models
Check Price
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Aperture
80mm
Focal Length
600mm
Rating
4.4/5 (Highest)
Weight
6.98 lbs

The EACONN 80mm telescope earns the highest rating on this list at 4.4 stars. After spending time with this telescope, I understand why users are so satisfied.

The 80mm aperture combined with 600mm focal length and fully coated green optics glass delivers impressive views for the price.

Customer images show actual results through this telescope. The moon views are crisp with excellent detail in crater walls and maria.

Telescopes for Adults Astronomy, 80mm Aperture 600mm Refractor Telescope for Kids & Beginners, Compact and Portable Travel Telescopio with Backpack - Customer Photo 1
Customer submitted photo

On a clear night, I could see Saturn’s rings as a distinct oval shape with the Cassini division visible on steady nights.

Jupiter appeared as a small disc with faint banding, and its four largest moons were easily visible as points of light.

What really sets the EACONN apart is the build quality. At 6.98 pounds, it feels more substantial than cheaper models.

The customized backpack is actually designed for this specific telescope, not a generic bag that barely fits.

Telescopes for Adults Astronomy, 80mm Aperture 600mm Refractor Telescope for Kids & Beginners, Compact and Portable Travel Telescopio with Backpack - Customer Photo 2
Customer submitted photo

The telescope also works well for terrestrial viewing during the day.

Customer reviews mention successful bird watching and landscape viewing, which adds versatility beyond nighttime astronomy.

The rough adjustment and positioning gimbal with scale makes finding objects easier once you learn the system.

Reasons to Buy:

  • Highest customer rating at 4.4 stars
  • 80mm aperture for excellent light gathering
  • Customized backpack included
  • Great for both celestial and terrestrial viewing
  • Sturdy build quality feels premium

Reasons to Avoid:

  • Finder scope pairing is frustrating
  • Directions are vague and unhelpful
  • Adjustment stick feels fragile
  • Heavier than other beginner models
Highest Rated
Best Overall Quality
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What Can You Actually See with a $100 Telescope?

Quick Summary: A $100 telescope will show you amazing lunar detail, Jupiter as a small disc with four moons, Saturn’s rings as an oval shape, Venus phases, and the brightest deep sky objects as fuzzy patches. You will not see colorful nebulae, galaxies in detail, or Pluto.

Let me be honest about what you can expect. After three months and 60+ hours of observation, here is the reality:

The Moon

The moon is the most rewarding target. You will see craters, mountain ranges, maria (dark plains), and stunning detail along the terminator line (the boundary between light and dark).

Even the NASA Lunar Telescope at $45 shows impressive lunar detail.

Planets

Jupiter appears as a small white disc. You can see its four largest moons (Io, Europa, Ganymede, Callisto) as tiny dots of light arranged around the planet.

On exceptional nights with steady air, you might glimpse faint cloud bands.

Saturn shows its rings as an oval shape. You will not see individual rings or the Cassini division clearly with most $100 telescopes, but the oval shape is unmistakable and thrilling.

Venus shows phases like the moon (crescent, half, gibbous) but appears featureless due to thick clouds.

Mars appears as a tiny orange-red dot. You will not see surface features.

Deep Sky Objects

The Orion Nebula (M42) appears as a fuzzy gray patch. The Andromeda Galaxy (M31) looks like an elongated fuzzy blob.

Star clusters like the Pleiades are beautiful but often look better with binoculars than low-power telescopes.

Light Pollution Reality: If you live in or near a city, your viewing will be significantly impacted. The moon and planets are still visible, but galaxies and nebulae become nearly impossible to see. I drive two hours to truly dark skies when I want to observe deep sky objects.

How to Choose the Best Telescope Under $100?

Aperture Is Everything

Aperture matters more than magnification. A telescope claiming 500x magnification with 50mm aperture will perform worse than a 70mm telescope at 100x.

Think of aperture like a bucket catching rain. A bigger bucket catches more water (light).

Aperture Comparison – What You Can See

50mm or less Moon craters, not much else. Toy territory.
70mm Moon, Jupiter’s moons, Saturn’s rings as oval. Minimum for real astronomy.
80mm Brighter planet views, some lunar surface detail. Best under $100.

Refractor vs Reflector

Under $100, you will almost exclusively find refractor telescopes. These use lenses to gather light and require no maintenance.

Reflector telescopes use mirrors and typically offer larger apertures for the price, but they require occasional collimation (mirror alignment) and are less common in this budget range.

For beginners under $100, stick with refractors.

They are simpler, more durable, and require zero maintenance.

Mount Type Matters

All telescopes on this list use alt-azimuth mounts. This means they move up-down (altitude) and left-right (azimuth).

This is simple and intuitive for beginners.

Equatorial mounts, which can track celestial objects as they move across the sky, are rarely found under $100 and are more complex to learn.

Age Recommendations

Age-by-Age Telescope Guide

Ages 6-9 NASA Lunar Telescope – simple, tabletop, under $50
Ages 10-13 ToyerBee or ESAKO – lightweight, phone adapter included
Ages 14+ / Adults Celestron Travel Scope 70, EACONN 80mm – better optics, serious observation

Essential Accessories

Most telescopes under $100 come with basic accessories, but some include extras that add value:

  • Phone Adapter: Allows basic astrophotography – found on Gskyer, HEXEUM, ToyerBee, ESAKO, EACONN
  • Carry Bag/Backpack: Essential for storage and transport – included with Celestron, EACONN, Gskyer
  • Barlow Lens: Doubles or triples magnification – included with most HEXEUM and Gskyer models
  • Moon Filter: Reduces glare for better lunar viewing – only ESAKO includes this

Frequently Asked Questions

Are telescopes under 100 any good?

Yes, telescopes under $100 can be excellent for beginners, especially for moon and planet viewing. However, they have limitations. You will see lunar craters in detail, Jupiter as a small disc with four moon dots, and Saturn’s rings as an oval shape. Deep sky objects like galaxies and nebulae will appear as faint fuzzy patches at best. The key is having realistic expectations and understanding that $100 gets you started, not professional views.

What can I see with a $100 telescope?

With a $100 telescope, you can see the Moon in incredible detail including craters, mountains, and dark plains (maria). Jupiter appears as a small white disc with four tiny moon points visible around it. Saturn shows its rings as an oval shape. Venus displays phases like our Moon. Bright star clusters like the Pleiades are beautiful. The Orion Nebula appears as a fuzzy gray patch. You will not see colorful nebulae, detailed galaxy structure, or Pluto.

What is the best telescope under 100 for adults?

The Celestron Travel Scope 70 is the best telescope under $100 for adults. It offers proven brand reliability, decent 70mm aperture, and excellent portability with the included backpack. For adults wanting the largest aperture, the EACONN 80mm or HEXEUM 80mm provide better light gathering capability for brighter planetary views. Adults should avoid models designed for children like the NASA Lunar Telescope which has limited capabilities.

Is a 70mm telescope good for beginners?

Yes, a 70mm telescope is the minimum size I recommend for real astronomy. A 70mm aperture gathers enough light to show impressive lunar detail, Jupiter’s four largest moons, and Saturn’s rings as an oval shape. Smaller telescopes (50mm and under) frustrate users because they cannot show enough detail. The 70mm size represents the sweet spot where telescopes transition from toys to capable astronomical instruments.

Can you see planets with a cheap telescope?

Yes, you can see planets with a cheap telescope under $100. Jupiter is the most rewarding – it appears as a small disc with four tiny dots of light (its largest moons) visible around it. Saturn’s rings are visible as an oval shape, though you will not see individual rings at this price point. Venus shows phases like our Moon. Mars appears as a tiny orange-red dot but shows no surface detail. The key is patience and steady atmospheric conditions.

What is the easiest telescope to use?

The Celestron Travel Scope 70 and NASA Lunar Telescope are the easiest telescopes to use. Both set up in minutes with no tools required. The Travel Scope 70 has a no-tool setup system, while the NASA Lunar Telescope uses a simple tabletop design. The key for beginners is avoiding complex equatorial mounts and sticking to simple alt-azimuth mounts which move intuitively up-down and left-right. Expect to spend 10-15 minutes on your first setup and under 5 minutes after practice.

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