Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › Celestron › Telescopes
Celestron
Celestron AstroMaster Refractor 90EQ

Celestron AstroMaster Refractor 90EQ

4.3(61 ratings)

Best price now

$319.99at AdoramaChecked 6 h ago

Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

Visit Adorama

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Lowest price today: $319.99 at Adorama (checked Nov 10, 2026).
  • Checked at 3 stores.

Our take on the Celestron AstroMaster Refractor 90EQ

The AstroMaster 90EQ is a 90mm f/11 refractor on a German equatorial mount with slow-motion controls. It ships with two eyepieces and a red-dot finder, giving 50x and 100x out of the box and up to 213x with a Barlow. The refractor design needs no collimation, which makes it easier to live with than a reflector for a first serious scope. Against the AstroMaster 130EQ reflector it gives up aperture but avoids mirror alignment and shows sharper, contrastier views of the Moon, planets and double stars.

Best forFirst-time telescope owners who want a low-maintenance refractorLunar, planetary and double-star viewingFamilies and casual backyard observersAnyone who wants a real equatorial mount to learn tracking
Pros
  • Sealed refractor tube holds collimation; nothing to adjust
  • German equatorial mount with slow-motion cables tracks objects smoothly
  • 90mm aperture resolves lunar craters, Saturn's rings and Jupiter's belts
  • Fully coated optics and a 90-degree star diagonal
  • Includes two eyepieces, red-dot finder and tripod
Cons
  • Long f/11 tube is bulky and awkward to carry
  • Aluminum tripod is light and can wobble at high power
  • Red-dot finder is basic and needs careful alignment
  • Equatorial mount takes practice to set up and polar align
  • Not suited to faint deep-sky objects or astrophotography

Celestron AstroMaster Refractor 90EQ prices at every store

  • Best BuyNew

    In stock

    $319.99Free shippingChecked 6 h ago
    Visit Best Buy
  • AdoramaNew

    In stock

    $319.99Free shippingChecked 6 h ago
    Visit Adorama
  • NeweggNew

    In stock

    $327.00Free shippingChecked 6 h ago
    Visit Newegg

Store links may earn us a commission. Some prices via Klarna.

Celestron AstroMaster Refractor 90EQ price history

Lowest price we've seen: $319.99 on Nov 10 at Best Buy. Tracked across 3 stores since Nov 10.

What reviewers say

  • 4.3 / 561 ratings

Owners rate it well as a beginner refractor, praising sharp lunar and planetary views and the smooth mount. Complaints center on tripod shake, the fiddly equatorial setup and the basic finder.

What people mention
  • Optical sharpnessPraisedOwners say the Moon and planets look crisp and detailed for a scope this size.
  • Mount stabilityCriticisedThe tripod and mount shake at high magnification or in a breeze, blurring the view.
  • SetupMixedThe equatorial mount tracks well once aligned, but beginners find polar alignment slow to learn.
  • PortabilityCriticisedThe long tube and tripod are bulky to carry and store.
  • FinderCriticisedThe red-dot finder is dim and needs frequent realignment.

Specifications

Built-In Camera
NoSource
Waterproofness
NoSource
Weight (oz)
219.1Source
Objective Lens Diameter (")
3.54Source

Questions and answers

Is the AstroMaster 90EQ good for a beginner?
Yes. The refractor needs no collimation and the mount tracks objects once aligned, so it is forgiving for a first scope. Budget time to learn polar alignment.
What can I see with it?
Craters and mountains on the Moon, Saturn's rings, Jupiter's cloud belts and moons, and many double stars. Bright nebulae and galaxies show as faint smudges.
How does it compare with the AstroMaster 130EQ?
The 130EQ reflector gathers more light for deep-sky objects, but it needs collimation. The 90EQ refractor gives sharper, maintenance-free views of the Moon and planets.
Can I use it for astrophotography?
Only basic Moon shots with a phone or camera held to the eyepiece. The mount is manual and not built for long-exposure imaging.
What is in the box?
The 90mm refractor tube, German equatorial mount, aluminum tripod, two eyepieces, a 90-degree star diagonal, a red-dot finder and slow-motion cables.
Does it need batteries?
No. The mount is fully manual, so there is nothing to charge or power.
Where is the Celestron AstroMaster Refractor 90EQ cheapest?
At Adorama, for $319.99, as of our latest check.
What do buyers say about the Celestron AstroMaster Refractor 90EQ?
Rated 4.3 out of 5 from 61 ratings.
Where can I buy the Celestron AstroMaster Refractor 90EQ?
3 stores we checked sell it, including Best Buy, Adorama, Newegg.

Stores we've priced the Celestron AstroMaster Refractor 90EQ at

  • Adorama deals and prices
  • Best Buy deals and prices
  • Newegg deals and prices

More from Celestron

  • C
    Celestron NexStar Evolution 6
    Celestron NexStar Evolution 6
  • C
    Celestron Inspire 100AZ 66x100
    Celestron Inspire 100AZ 66x100
  • C
    Celestron PowerSeeker 60AZ Telescope
    Celestron PowerSeeker 60AZ Telescope
  • C
    Celestron Astromaster 130EQMD MOTOR DRIVE Telescope
    Celestron Astromaster 130EQMD MOTOR DRIVE Telescope
  • C
    Celestron StarSense Explorer DX 5
    Celestron StarSense Explorer DX 5
  • C
    Celestron AstroMaster 130EQ Newtonian Reflector Telescope
    Celestron AstroMaster 130EQ Newtonian Reflector Telescope
  • C
    Celestron StarSense Explorer DX 130AZ Smartphone App-Enabled Newtonian Reflector Telescope
    Celestron StarSense Explorer DX 130AZ Smartphone App-Enabled Newtonian Reflector Telescope
  • N
    NexStar 130 SLT Computerized Telescope
    NexStar 130 SLT Computerized Telescope
All Celestron deals and products →
Anti Reflective Coating
Fully CoatedSource
Battery
NoSource
Motorized
NoSource
Magnification (min)
13.0Source
Features
Tripod AttachmentSource
Magnification (max)
213.0Source