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🌌 Own the night sky—because the universe waits for no one!
The Celestron AstroMaster 90EQ is a beginner-friendly refractor telescope featuring a 90mm fully-coated objective lens for bright, detailed views of celestial and terrestrial objects. Its stable German equatorial mount with slow-motion controls enables precise manual tracking, while the adjustable-height tripod ensures comfortable viewing for all. Quick, tool-free assembly and included accessories—20mm and 10mm eyepieces, 90° erect image diagonal, StarPointer red dot finderscope, plus free astronomy software—make it the perfect gateway for millennials eager to explore the cosmos with confidence and style. Backed by a 2-year US warranty and expert support, this telescope blends performance with ease for an immersive stargazing experience.













| ASIN | B000MLHMBM |
| Additional Features | Quick and easy no-tool setup |
| Age Range Description | Adults |
| Best Sellers Rank | #242 in Camera & Photo Products ( See Top 100 in Camera & Photo Products ) #26 in Telescope Refractors |
| Brand | Celestron |
| Built-In Media | 20mm and 10mm eyepiece, Manual, Optical tube, Red-dot finderscope, Tripod and mount (preassembled) |
| Coating | Fully Coated |
| Compatible Devices | Eyepieces, Tripod, Star Diagonal, Finderscope |
| Customer Reviews | 4.2 out of 5 stars 306 Reviews |
| Exit Pupil Diameter | 8.07 Millimeters |
| Eye Piece Lens Description | Kellner |
| Field Of View | 1.6 Degrees |
| Finderscope | Built-on StarPointer™ red dot finderscope |
| Focal Length Description | 10 millimeters |
| Focus Type | Manual Focus |
| Global Trade Identification Number | 00050234210645 |
| Item Dimensions D x W x H | 30"D x 15"W x 51"H |
| Item Weight | 13.7 Pounds |
| Manufacturer | Celestron |
| Manufacturer Part Number | 21064 |
| Model Name | AstroMaster 90EQ Telescope |
| Model Number | 21064 |
| Mount | Equatorial Mount |
| Number of Batteries | 1 Lithium Metal batteries required. (included) |
| Objective Lens Diameter | 90 Millimeters |
| Optical Tube Length | 70 Millimeters |
| Optical-Tube Length | 70 Millimeters |
| Power Source | Battery Powered |
| Telescope Mount Description | Equatorial Mount |
| UPC | 050234210645 |
| Unit Count | 1.0 Count |
| Warranty Description | TWO-YEAR LIMITED WARRANTY |
| Zoom Ratio | 2:1 |
A**O
An excellent choice
My experience starts with their small travel scope that I've used quite often and did okay for its price. This scope is a huge upgrade in terms of quality. The tripod is excellent and can be fine tuned to center your target and the scope is a big upgrade compared to the travel scope I use. Combining this with celestrons 3x Barlow scope and their zoom lense that I originally used on the travel scope. Look forward to trying it out later tonight. It was easy to set up read the directions if needed they are pretty simple, but your just putting a couple pieces together. *A warning though it is pretty hefty so be careful carrying it* I also didn't have any issues regarding quality or damage to the item that others have experienced
S**N
A perfect first telescope!
A perfect first telescope! Especially suited for lunar and planetary viewing. The views of the moon through this telescope are breath-taking! The EQ mount makes tracking objects so much easier once you get used to it; you will spend more time enjoying actually viewing, instead of fighting adjustments as with an AZ mount. Overall this is an outstanding scope! Well worth the jump up from the 70mm. For the highest contrast, sharpest views of the planets a refractor is definitely the way to go! Also, practically zero maintenance and no time spent collimating. Just put it on the mount and get right to viewing! Purchased Astromaster Accessory Kit: it's a decent upgrade for this telescope if you're on a budget, but I can't recommend it. The 15mm Kellner actually performs well for a cheap eyepiece. However, the filters in this kit are too dark for a refractor of this size, and you really won't get any benefit from them on the planets. You really don't need a barlow lens for this scope, because the magnification range is fairly narrow; you just need the right size eyepieces. Skip the kit and purchase the Agena AstroProducts EWA 9mm eyepiece instead; for $45 I challenge you to find a better performing eyepiece! It really takes views through this instrument to a whole new level! Very comfortable for extended viewing, with great eye-relief, a wide field of view, and excellent contrast! This single eyepiece makes every starter eyepiece in your collection obsolete! This entire line of eyepieces are incredible for the price! This scope really shines in the x111 to x166 magnification range. Sometimes it takes a little patience to really nail the focus, as the focuser adjustment is a bit coarse. If it's within your budget I recommend the prism diagonal 90 by William Optics which has a 15mm fine helical focuser adjustment (Agena AstroProducts carries it). It's worth every penny, and is an incredible upgrade. Looking through the Agena EWA 9mm on this diagonal is like having a new telescope, and everything I viewed was like looking at it again for the first time! The moon through these optics will simply blow you away! To get the most out of this instrument, upgrade the cheap, plastic diagonal, and don't buy the cheap "kit" lenses. Clear Skies! :)
B**.
Perfect starter telescope.
My wife has been looking at telescopes for a while, but she didn't know how much they cost, so she never asked for one. I did a little bit of research and found that I could afford this one. The reviews were pretty good and it looked very neat. I didn't expect much for the price, but I figured it'd be a good starter telescope. Needless to say, we're beyond happy. It's very easy to assemble (I didn't even use instructions) and works flawlessly. We were so happy to be able to view the moon and all the details on it. I just bought a T-adapter and a T-ring for her D7000 camera so that she can do photography, but I'm also planning on buying more lenses later on. It's a great product. I highly recommend it.
K**R
This Telescope is Great!
Easy to assemble, well packaged when delivered. Now the fun part. The basic lens that comes with it is good enough that you have to get more! You just have to. We've had a lot of fun watching the moon, several planets, including Jupiter and checking out the constellations with this unit. We have added a couple more lenses to our new hobby, and we need to buy stock in mosquito repellant because we live in Michigan, but we are really enjoying this!
L**N
Overall good quality
Good overall but One of the focusers is bent and does not work correctly.
G**N
I own 2 of these but, th done I got from here on Amazon?
Ok, so back in 2017, I purchased this exact same telescope but I purchased it at a local store that also sold Cameras & lenses etc. And I bought if for my grand daughter & I to look around at stuff in the sky at night and over things. When she was older, I let her take the telescope home so she could have fun with her new fun hobby by herself & she has become quite an Astro Photographer in the last 2 or 3 seasons. Now in 2020 I decided I would by my other sons son, My Grandson one as well & have him start the same way I taught my grand daughter. And since no one locally sold them anymore I had no choice to order one from Amazon. The only difference between the 2 is the first one I bought had host the simple adjuster, this second one had the German equilateral setup. When it arrived at first I didn’t think about it when I unpacked it. But a few weeks later at my granddaughters 90mm the build quality was 10 times better than the nes one. So I asked he to bring it over the next time she came over.Which she’s did. And as soon as I put these side by side, even they said the same model. Looking closer they might has well been made by 2 different makers as they weren’t even close. I pulled bothe of them off their tripods & weighed them, the old one was 6 pounds heavier than the new one! And then with a little other looking around at it, the focus teeth were finer, the eyepieces were better quality, and the new one had dust & dirts iside the ube. I would have returned it but amazon said I was 2 days over the returning date. So, none the less, I’m stuck with this un-focusable POS from either Amazon or Celestron (called them too) So I guess I get to eat the cost of the newer & cheaper made current version… You’d be better off finding some one selling an older one off MArketplace & cleaning it up if you want one with more quality.
S**O
Good Telescope
I am a beginner when it comes to telescopes and I bought one mainly to look at the moon. I've had this for about a week and it's been working great! There was a new moon so I haven't been able to view much, but the image is crisp and clear. Would recommend. My model is the Astromaster 90EQ.
J**.
Received used & defective
First off this is a good looking telescope, It's one I've been wanting for a few years. Unfortunately I received it used & defective. When I got the box it was pretty banged up and the edges were torn, looked like this box has been shipped out a couple of times. When I unpacked the box I started to notice nicks in the plastic(pics attatched) parts of the telescope base & tripod. Then when i was putting together the eye piece to put the 20mm lens in, i noticed the part above the focus wheel looked off. It looked stripped or had wrong parts put on, plus it wouldn't focus. I attached pics of what I received & a pic off the listing of what it should look like! This was a birthday present from my Mother and we didn't spend this kind of money for a used unit, Im very upset! So I packed it up the way I found it and shipping it back. To top everything off I have to wait 30 days for a refund after I dropped it off at UPS but now it says until aug 31st, then another 7 days to process. I probably made a mistake but I purchased another one cuz I didn't want my mom to be upset I didn't get what I wanted for my birthday, I pray I am wrong and it comes in perfect condition. If it's defective & damaged too, I wont buy from this brand again.
H**K
i like it..
you may need to buy another eyepiece. but still good for watching moon. easy to setup and use it. Good.
D**E
Insgesamt gutes Teleskop, aber man muss/sollte noch Einiges dazu kaufen
Zusammenbau: Erstaunlich einfach, auch wenn es erst einmal nicht so aussieht. Die Ausrichtung der Äquatorialmontierung habe ich mir in einem Youtube-Video angeschaut. Es geht auch ohne Ausrichtung, aber dann ist die Bewegung des Teleskops auf bestimmte Objekte frickeliger. Das Teleskop lässt sich von Stativ und Montierung einfach trennen, falls man es mal mitnehmen wollen würde. Stabilität: Das Teleskop ist an sich gut verarbeitet und steht recht stabil. Man darf aber keine Wunder erwarten, besonders bei höheren Vergrößerungen wackelt das Bild erstmal 1-2 Sekunden, wenn man etwas berührt. Ich glaube aber auch nicht, dass es in diesem Preisbereich Teleskope gibt, die wirklich starr dastehen. Auffinden von Himmelsobjekten: Der Sucher mit dem roten Lichtpunkt hat mich wirklich überrascht. Ist er erst einmal justiert (ich habe einen Schornstein in der Nähe dazu benutzt), lassen sich damit Planeten wie Saturn und Jupiter wirklich einfach anpeilen. Das war bei einem früheren billigen Teleskop viel schwieriger. Abbildungsqualität: Die mitgelieferten Okulare sind so leicht, dass man sie wegblasen kann. Ihre Abbildungsqualität ist "ok", aber es geht natürlich besser. Da gute (nicht sehr gute!) Okulare gerne mal 30-60 Euro kosten, ist es verständlich, dass hier gespart wurde. Es ist wie in der Fotografie: das Glas kostet immer am meisten. Ich habe mir das Celestron 8-24 mm Okular Zoom 93230 dazu gekauft. Mit ihm ist die Abbildungsleistung sichtbar besser. Man ist außerdem flexibler damit und muss nicht die ganze Zeit Okulare wechseln. Ein von mir testweise gekauftes 15mm Festbrennweiten-Okular (Svbony SV154 15mm 70 Grad ) ist noch einen Tick schärfer und der Blickwinkel ist größer. Kann man machen, muss aber meiner Meinung nach nicht unbedingt sein, da das Celestron Zoom sehr gut ist. Was kann man mit diesem Teleskop sehen? Da ich mitten in der Stadt wohne, habe ich mich bis jetzt auf Mond, Jupiter und Saturn konzentriert. - Der Saturn ist sehr scharf sichtbar, eine Vergrößerung (Zoom) vergrößert das Bild, bringt aber nur wenige neue Details. Man kann den Mond Titan als winzigen Lichtpunkt sehen. Die Teilung oder den Schatten des Ringes konnte ich bisher nicht sehen, die Sichtbedingungen waren aber bisher allenfalls "gut". Ab einer Vergrößerung von ca. 60x wird das Bild merklich dunkler und "wabert". Im Bereich 40-50x ist man am besten aufgehoben. - Den Jupiter sieht man mit seinem 4 größten Monden sehr deutlich. Man sieht die Bänder des Jupiters, den "Fleck" konnte ich bisher nicht sehen. Zur Vergrößerung gilt das beim Saturn Gesagte. - Den Mond kann man natürlich sehr gut beobachten. Bei 24mm ist er gesichtsfeldfüllend und beim Hereinzoomen kann man dann einzelne Krater und deren Schatten (je nach Mondphase) sehr schön anschauen. Hier lohnt sich das Zoom-Okular besonders. Erwartungsmanagement: Man darf keine Wunder erwarten, die Planeten sind bei Weitem nicht "bildschirmfüllend" zu sehen. Es ist eher so, dass sie ca. 5% des Gesichtsfeld einnehmen. Aber man sieht alles, was wichtig ist, was schon beeindruckend ist. Ich glaube nicht, dass im Preisbereich unter 2000 Euro viel mehr möglich ist, was auch der Bewegung in der Atmosphäre ("Seeing") und der Montierung (jede kleinste Bewegung wird 40-60-fach vergrößert) geschuldet ist. Mögliche Vergrößerungen: Mit den mitgelieferten Okularen 50x und 100x, mit meinem Zoom 40x bis 125x. Mit einer 2x Barlow-Linse (z.B. Svbony SV137) verdoppelten sich die genannten Werte unter einem leichten Verlust an Bildqualität. Sinnvoll bei den Planeten meiner Meinung nach 40x-60x, beim Mond sieht man bei 125x auch noch Interessantes, aber das Bild wird viel dunkler und wabert durch die Atmosphäre. Für kleinere Vergrößerungen beim Mond ist ein Filter zur Verringerung der Helligkeit (z.B. Celestron 94119) sinnvoll. Ich gebe insgesamt 5 Sterne, obwohl man doch Einiges dazu kaufen muss/sollte. Es ist aber illusorisch anzunehmen, dass das bei diesem Preis anders möglich wäre.
F**A
İyiki almışım
Dün elime ulaştı. Bu gece Satürn ü gördüm. Çok net bir şekilde halkası belli oluyordu. Henüz ay ve Jüpiter bulunduğum enlemde olmadığı için onlara bakamadım. Aşırı kaliteli malzemeden üretilmiş. İsteğe bağlı 5 mm yada 4mm mercek alabilirsiniz. Ben içinden çıkan 20 mm mercek ile Satürn'ü gördüm. Ayrıca doğa gözlemi için de çok güzel. Tavsiye ederim. Özellikle şuan indiirm varken alınması gerekir. Ucuz birşey alıp pişman olmayın. Teleskobun ucuzu olmaz. Ne kadar kaliteli ise o kadar pahalı oluyor. Sizi gökyüzünden soğutur. Bu arada ben ekstra 5 mm ile x2 barlow lens sipariş ettim. Ama henüz elime ulaşmadı. Satürn için içinden çıkan lensler yeterli oluyor.
C**S
Dont expect any support what so ever.
The red scope passed Celesteron QA without working, I was redirected to doa the product with Celesteron UK by Amazon, not a word from Celestron after two emails, excrpt one return email asking to add basic data I stated in their webform allready. Last time I bought a Celesteron product I could handle it via Amazon wo problems, then it was binoculars arrivinig with the lenses out of calibration giving a dual image.
S**Y
Priceless
CELESTEON 90EQ: £159.00. The wonder on my little boys face when he saw the moons carters earlier tonight: Priceless. A wonderful piece of kit, looking forward to spending many star filled night skys with my family.
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