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Celestron Moon Mission 100mm tabletop Dobsonian review

The excitement of the new moon mission has potentially helped create a new generation of stargazers, just like the Apollo program did 60 years ago. These new observers will be looking for a beginner’s telescope that is easy to use and which can show them the craters on the moon in particular. The Celestron Moon Mission 100mm Tabletop Dobsonian could be the perfect entry point for them. It has a superb price-point for its aperture, and is capable of bringing not only the moon, but double stars, the brighter galaxies and nebulas and the moons of Jupiter to your backyard.

The Celestron Moon Mission 100mm Tabletop Dobsonian comes equipped with 8mm and 20mm eyepieces, one of which is intended specifically for the moon, as well as a red-dot finderscope, a moon filter, a moon-map poster and free access to download the Starry Night planetarium software and Celestron’s SkyPortal app, which is powered by SkySafari.

All in all, it will make an excellent package for someone to get started enjoying the night sky. Though the optics and accessories are not perfect, for the price their drawbacks can be overlooked, and as an entry-level telescope it paves the way for the user to graduate to increasingly more sophisticated telescopes at a later date.

Celestron Moon Mission 100mm Tabletop Dobsonian review

Celestron Moon Mission 100mm Tabletop Dobsonian: Design

The aperture and eyepiece on the Celestron Moon Mission 100mm Tabletop Dobsonian with grass in the background.

The lack of a tripod means this telescope does have its limitations but any stable, flat surface will suffice. (Image credit: Gemma Lavender)
  • Quick and simple set-up
  • Portable

The Celestron Moon Mission 100mm Tabletop Dobsonian comes out of its box complete, other than its eyepieces and red-dot finderscope in plastic bags. Set-up takes literally minutes — remove the plastic cap over the aperture and the cap on the focuser, insert your eyepiece of choice, screw on the finderscope and you are ready to go. No tools such as screwdrivers or Allen keys are needed— it is just a matter of unscrewing thumbscrews.

We found the finderscope went on easily — more about that later. However, the tiny thumbscrews that lock in the eyepiece were incredibly tight. Pliers didn’t help much and risked damaging the screw. In the end, we found elbow grease was just about enough to unscrew them, but if our review model is typical, then children will definitely need the help of an adult to unscrew these. Once they are unscrewed, they can be tightened to more forgiving tolerances.

A woman looking through the eyepiece of the Celestron Moon Mission 100mm Tabletop Dobsonian with grass in the background.

Adults may be needed to help smaller children install the thumbscrews that hold the eyepiece in place. (Image credit: Gemma Lavender)
Specifications

Optical design: Newtonian reflector

Aperture: 3.9 in (100 mm)

Focal length: 15.75 in (400 mm)

Focal ratio: f/4

Eyepiece focal lengths & magnification: 20mm (20x) and 8mm (50x)

Weight: 2.4 lbs (1.08 kg)

Mount type: Dobsonian

Overall we can recommend the build quality of the Celestron Moon Mission 100mm Tabletop Dobsonian. Everything is sturdily made, from the Dobsonian base, the optical tube, the easily adjustable tilt and focuser knobs. The mount has a single arm and rotates on a ‘lazy Susan’ turntable.

Celestron Moon Mission 100mm Tabletop Dobsonian: Performance

A woman looking through the Celestron Moon Mission 100mm Tabletop Dobsonian with grass in the background.

The Moon Mission's focuser can be a little finicky, as we discovered. (Image credit: Gemma Lavender)
  • Three
  • Bullet
  • Points

This is where we thought that the Celestron Moon Mission 100mm Tabletop Dobsonian excelled. For such a small telescope, it was decently versatile.

For example, on the night of April 5, our first target was Jupiter, which was bright in Gemini, and unmistakable as it lay not far from the constellation’s twin stars Castor and Pollux. Jupiter appeared as a bright disk, with perhaps the merest hint of its banding — or was that our imagination? What certainly were real were the four Galilean moons: Io and Europa on one side, Ganymede and Callisto on the other. It was a sight sure to impress beginners and casual observers.

We moved the Celestron Moon Mission’s view towards the multiple star Castor, and the telescope capably split the main binary pair as two close, white stars using the 20mm eyepiece. Another popular multiple star is Mizar and Alcor in Ursa Major. Of course, Mizar and Alcor can be split with the naked eye, but the third visible star in the system is for telescopes only, and again the Celestron Moon Mission showed the three stars clearly.

Slewing east, Arcturus — the second brightest star visible from the U.K., and fourth brightest in the entire sky — appeared a glorious red, evoking its nature as a red giant.

While waiting for the moon to rise (and before taking some time out to watch the Artemis II coverage), we decided to track down some faint fuzzies. The box that the Celestron Moon Mission comes in highlights the Orion Nebula and the Andromeda Galaxy as two deep sky objects that the telescope can see. At the time of testing, the Orion Nebula was too low in the west, while the Andromeda Galaxy was not visible. Instead, we hunted down two other nearby galaxies, M81 and M82, in Ursa Major.

Searching for these two galaxies, which are located next to each other in the same field of view, is where the real challenge of using the finderscope, as we described in the Functionality section, really reared its head. In the end, we decided to star hop to the galaxies and struck out in roughly the right direction. Soon the telescope alighted on the two galaxies, visible as two fuzzy patches of light. Looking at them straight on, we found it difficult to discern their shape, but by using averted vision as we looked through the 20mm eyepiece of the Celestron Moon Mission, we could make out the broad disk-shape of the spiral M81, and the elongated cigar shape of M82, and even caught hints of mottling with brighter spots in the edge-on M82 that are better seen in images.

A woman looking through the eyepiece of the Celestron Moon Mission 100mm Tabletop Dobsonian.

You'll likely use the eyepiece more frequently than the finderscope. (Image credit: Gemma Lavender)

After we watched the live NASA feed of Artemis II going around the far side of the moon, the moon finally rose from our location after midnight. Its phase was a waning gibbous three days after full. As such, the moon appeared bright and reddish, being low to the horizon. Through the 20mm we could see the whole disk, though the phase meant that for most of the lunar surface there was no contrast, making it harder to distinguish craters except for at the terminator.

Adding the 1.25-inch moon filter — more properly known as a neutral density filter that dims the incoming light — helped to limit the contrast and make the details stand out more. Switching to the 8mm eyepiece, with a magnification of 50x, the view jumped closer to the moon and the lunar surface filled the field of view, with bright crater rays visible on dark lunar mares.

Celestron Moon Mission 100mm Tabletop Dobsonian: Functionality

Fingers adjusting the eyepiece on the Celestron Moon Mission 100mm Tabletop Dobsonian with grass in the background.

As a Newtonian reflector, the Celestron Moon Mission 100mm Tabletop Dobsonian provides an inverted image. (Image credit: Gemma Lavender)
  • Finderscope is awkward to use when pointed at the zenith
  • Focusing is adequate
  • Simple to use

The tabletop nature of the telescope poses some challenges for adults using it. As its name suggests, the telescope is designed to go on the top of a table. Usually when we think of Dobsonian telescopes, we think of very large instruments with very large apertures, and eyepieces close to standing height. This Dobsonian, on the other hand, is very small, and without a very tall table we found that we spent a lot of our time bent double looking through the eyepiece. Of course, this also means it is the perfect height for a child.

We found it did pose a problem when using the finderscope. For objects at low elevations, such as Jupiter in Gemini during spring 2026, we found it wasn’t too bad. However, when we wanted to direct the telescope towards Ursa Major at the zenith, the only way we could look through the finderscope was by literally getting on the floor to look through it. This is a problem with all tabletop telescopes, not just the Celestron Moon Mission, and it would be unfair to suggest otherwise — but it is a problem nonetheless.

Once we addressed the tightness of the focuser thumbscrews, we could switch the eyepieces in and out with ease. We found the focuser to be perfunctory. It provides only coarse focusing, with no careful fine-tuning, and sometimes it was tricky to find the sweet spot. Additionally, Newtonian reflectors like this one require collimating for perfect pin-sharp images. Collimating refers to adjusting the secondary mirror (the primary mirror is fixed at the base of the optical tube) so that it aligns and focuses light reflected from the primary just so. It’s also a fact that astronomers hate collimating, as it is a finicky procedure.

Different eyepieces for the Celestron Moon Mission 100mm Tabletop Dobsonian on a grey table.

The scope comes with 8mm and 20mm eyepieces, and can handle most 1.25-inch eyepieces. (Image credit: Gemma Lavender)

Out of the box, the collimation wasn’t bad, and we felt it was also unreasonable to expect beginners and children, whom this telescope is undoubtedly aimed at, to collimate the instrument with no guidance or tools included. Therefore, we reviewed the telescope as it came out of the box, to replicate the experience that beginners and children would receive. Had we collimated the telescope, then it probably would have improved the image a tad.

We found that actually using the telescope, in terms of positioning and pointing, was very simple. It’s worth remembering that Newtonian reflectors reverse their image (up becomes down), and after using smart telescopes, GoTo telescopes and Celestron’s StarSense telescopes with directions provided by a smartphone for so long, that took a little getting used to again! It may confuse beginners and children, but before the days of smart telescopes and GoTo, everybody had to get used to navigating across the sky using a reversed image, so it’s no bad thing.

Should you buy the Celestron Moon Mission 100mm Tabletop Dobsonian

Buy it if:

✅ You are a beginner

✅ You are a parent wanting to introduce your child to the night sky

✅ You are looking for ease of use

✅ You are working on a budget

✅ You need portability

Don't buy it if:

❌ You are a serious observer and need larger apertures

❌ You are an astrophotographer and need a driven mount

❌ You want a high-tech instrument with smart capabilities

❌ You don’t want to have to star-hop and would prefer a GoTo

If you want to introduce your children to astronomy, then the Celestron Moon Mission 100mm Tabletop Dobsonian is the perfect instrument. It is safe to use, with no risk of knocking something heavy over, as it weighs about the same as a bag of sugar, which is amazing really. It is simple to use, in the sense that it is just a matter of pushing and turning, although children might need assistance in pinpointing the location of targets. It’s also a fair all-rounder, as all Dobsonians are – it excels at showing the moon, displays the planets very well, and shows deep-sky objects as best it can for a 100mm-aperture telescope

If you want to see fainter galaxies and nebulae, then you will need a telescope with a larger aperture. If you want to do imaging, then you will need a telescope with a motorized equatorial drive to enable you to track the objects while imaging.

And if you want assistance in finding celestial objects without having to star-hop, then a GoTo or smart telescope might be best for you.

If the Celestron Moon Mission 100mm Tabletop Dobsonian isn't for you

If you're looking to spend less, Celestron offers a smaller Dobsonian, the Celestron Firstscope 76. For a more flexible telescope, take a look at the Celestron Inspire 100Z. Or if neither fits the bill, we've rounded up the best telescopes and best beginner's telescopes.

How we tested the Celestron Moon Mission 100mm Tabletop Dobsonian

A woman looking through the Celestron Moon Mission 100mm Tabletop Dobsonian with grass in the background.

We put the Celestron Moon Mission 100mm through its paces, gazing both at deep space and objects in our own solar system. (Image credit: Gemma Lavender)

We used the Celestron Moon Mission 100mm Tabletop Dobsonian during the occasional clear nights in the first two weeks of April 2026 from our south-facing garden in the United Kingdom. The temperature was clement, about 50 degrees Fahrenheit (10 degrees Celsius), with some modest light pollution to the north and dark skies to the south looking towards a more rural area.

We began observing after 10 pm, with the skies completely dark. The moon was near full at the time of testing — in fact, quite fittingly, one of the nights was the same night that the Artemis II mission went around the moon. However, the moon remained low the entire night, meaning it could only be viewed near moonrise after midnight, close to the horizon, before it became hidden behind a nearby bank of trees for the rest of the night.

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This genuinely pocket-sized smart telescope makes capturing the deep sky and the solar system almost effortless

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The best smart telescopes have transformed astrophotography over the past few years, combining small telescope optics and automated mounts with dashcam-style camera sensors and image-processing software. The result? Compact devices that can be controlled entirely from a smartphone. Impressively, the DwarfLab Dwarf Mini pushes that concept even further.

Roughly the size of a thick paperback book, it’s one of the smallest smart telescopes yet produced — tiny enough to fit in a jacket pocket while still capable of imaging nebulae, star clusters, the moon and even sunspots. It's also one of the best telescopes for beginners.

Positioned below the larger Dwarf 3 in DwarfLab’s lineup, the Mini sacrifices aperture and resolution for portability. It uses a 30mm refractor paired with Sony’s IMX662 sensor and relies on automated stacking to gradually reveal deep-sky objects. The telescope connects to a phone via Wi-Fi or Bluetooth and handles alignment, tracking and imaging automatically through the DwarfLab app.

With built-in filters, optional equatorial tracking, and advanced software features such as Mega Stack and Stellar Studio processing, the Dwarf Mini is aimed at beginners and traveling astrophotographers who want a compact, automated imaging system that doesn’t require lots of extra kit — and works well even in light-polluted cities.

DwarfLab Dwarf Mini smart telescope review

DwarfLab Dwarf Mini: Design

The DwarfLab Dwarf Mini viewed from the side.

The DwarfLab Dwarf Mini unfolds into a capable mini-telescope. (Image credit: Jamie Carter)
  • Ultra-compact 30mm refractor telescope
  • Internal motorized filter wheel
  • Magnetic solar filter
  • Lightweight design
  • Ideal for travel and eclipse chasing

The defining characteristic of the Dwarf Mini is its size. The body includes a 360-degree rotating base and an articulating lens arm that moves through 225 degrees, allowing the telescope to cover most of the sky. It's significantly smaller than its competitors, including the larger Dwarf 3, making it easy to pack for travel. In fact, it’s easily small enough to slip into a camera bag or carry-on luggage, making it an appealing option for traveling astrophotographers — perhaps including eclipse chasers preparing for the upcoming trio of total solar eclipses beginning in 2026, since a magnetic solar filter is included in the box. Nice touch!

The telescope itself is a 30mm f/5 refractor with a focal length of 150mm. This produces a field of view of about 2.4 degrees, roughly five times the apparent diameter of the full moon. That optical system is paired with a Sony IMX662 sensor, a 1/2.8-inch sensor capable of 2.1MP resolution (1080p). This sensor is all about low noise and sensitivity, making it well-suited to short astrophotography exposures, but not to high-resolution images. Compared with the Dwarf 3’s Sony IMX678 Starvis 2 sensor, which delivers 8.3MP and 4K resolution, the Mini is a step down in terms of detail. However, in practice, the difference is smaller than expected, particularly after image stacking and processing.

The Dwarflab Dwarf Mini in its packaging.

The Dwarf Mini arrives in a box with few accessories. (Image credit: Jamie Carter)
Specifications

Optical design: Apochromatic refractor

Aperture: 1.18 inches (30mm)

Focal length: 150mm (5.91 inches)

Focal ratio: f/5

Field of view: 50.59 x 45.06 degrees (wide)/2.5 x 2.14 degrees (telephoto)

Total kit weight: 1.8 lbs (840 g)

Size: 7.24 x 3.94 x 2.4-in (184 x 100 x 61 mm)

Mount type: Alt-azimuth and equatorial (EQ)

Storage: 64GB internal memory

Battery: 7,000 mAh rechargeable (4 hours)

The device also features a motorized internal filter wheel, allowing users to switch between broadband and dual-narrowband filters directly in the app to mitigate light pollution and better image nebulae. This avoids the need to install external filters, which are an add-on accessory with some smart telescopes.

The box includes a magnetic solar filter, a USB-C charging cable and a lens cloth. However, a small tripod is not included in the box, which feels like an omission given the Mini’s travel-friendly design. That's not a deal-breaker since any small tabletop (or full-size) tripod can be used, but the all-in-one feel is sacrificed.

DwarfLab Dwarf Mini: Performance

A top view of the DwarfLab Dwarf Mini lens.

Close-up view of the Dwarf Mini’s dual-lens optical system. (Image credit: Jamie Carter)
  • Reveals deep-sky objects even under light pollution
  • Plate-solves stars and stacks short exposures
  • Mega Stack combines data from multiple sessions

The Dwarf Mini performs surprisingly well considering its small optics. During testing, it proved capable of capturing bright deep-sky targets such as the Orion Nebula (M42) and the Pleiades (M45), as well as open clusters like M44, even from suburban skies.

Smart telescopes compensate for small apertures by stacking many short exposures over time, gradually building up a deeper image. In standard alt-az mode, exposures are typically limited to around 10-15 seconds to prevent field rotation (which can cause blur). This technique allows the telescope to perform well even under heavy light pollution and/or strong moonlight, making it particularly useful for urban astronomers, where the chance of seeing faint nebulae is virtually zero.

One particularly useful feature is Mega Stack, which combines multiple imaging sessions of the same targets. Instead of capturing everything in a single session, data from several shorter sessions can be added later — even months or years later — to produce deeper images. That's handy when windows of clear skies are few, or if you plan occasional trips to dark skies where better data might be possible.

A view of the moon through the Dwarflab Dwarf Mini

February’s full Worm Moon as seen through the Dwarf Mini. (Image credit: Jamie Carter)

For more advanced imaging, the telescope also supports an equatorial (EQ) tracking mode, something professional astrophotographers insist upon. EQ mode may not be essential on a travel-friendly smart telescope like this, but its inclusion is impressive. It requires the purchase of an equatorial wedge, such as Dwarf Mini’s Mini Tripod accessory, which we were not able to test during this review. After a simple alignment with Polaris, the mount tracks the sky’s rotation, allowing exposures of up to 90 seconds. It can make a marked difference with very faint targets — though it’s not an essential feature on a smart telescope aimed at beginners.

Daytime performance is also strong. With the included solar filter, the Mini easily captured sunspots and solar activity, while lunar images also showed impressive crater detail.

The main limitation is resolution. The 2MP sensor produces images that look excellent on smartphones and social media, but they lack the detail needed for large prints or serious astrophotography. But for a telescope this small, the results are genuinely impressive.

DwarfLab Dwarf Mini: Functionality

A Dwarflab Dwarf Mini on a bench.

Any tripod works with the Dwarf Mini. (Image credit: Jamie Carter)
  • Smartphone control via Wi-Fi or Bluetooth
  • Sky Atlas feature for automatic target selection
  • Manual pointing and mosaic imaging modes

The Dwarf Mini is designed to be controlled entirely through the DwarfLab smartphone app, which connects via Wi-Fi or Bluetooth.

Once connected, users can browse a built-in sky atlas, which displays objects currently visible from their location. Selecting an object prompts the telescope to plate-solve the surrounding stars, automatically align itself, slew to the target and begin stacking exposures. Imaging sessions can be stopped at any point if you’re happy with the result so far. The app also displays session details such as exposure count and total integration time.

For users who want more control, the telescope can also be manually aimed at any patch of sky, which is particularly useful when imaging newly discovered comets or objects not yet included in the atlas database. For objects larger than its field of view, such as the Andromeda Galaxy (M31), Mini has a mosaic mode, which allows the telescope to capture multiple adjacent frames and stitch them together.

A DwarfLab Dwarf Mini, next to a Chocomel carton for size. They are both the same size.

The DwarfLab Dwarf Mini is roughly the same size as a drinks carton. (Image credit: Jamie Carter)

Captured images can then be processed using Stellar Studio, DwarfLab’s built-in image processing software, which is very good at removing noise and adding contrast. Images can be saved in JPG, TIFF or FITS formats, giving beginners a set of sharing-friendly options and more advanced users the chance to download files into desktop processing software.

A view of the Beehive Cluster

The Beehive Cluster (M44) in Cancer, imaged with the DwarfLab Dwarf Mini. (Image credit: Jamie Carter)

It’s all remarkably easy to operate once you’re comfortable with how the app works. Beginners can capture solar, lunar and deep-sky images within minutes of set-up, while more experienced astrophotographers can still access advanced features such as EQ tracking and mosaic imaging.

Firmware updates are frequent and install easily through the app, so it’s worth connecting the telescope to your home Wi-Fi before heading to a dark-sky site — you never know when new features will appear!

Should you buy the DwarfLab Dwarf Mini smart telescope?

Buy it if:

✅ You want an ultra-portable smart telescope for travel, urban observing or eclipse expeditions.

✅ You’re new to astrophotography and want an automated system that works straight from your phone.

Don't buy it if:

❌ You want high-resolution astrophotography results for printing or detailed processing.

❌ You prefer traditional telescopes with eyepieces and manual control.

The DwarfLab Dwarf Mini offers a tempting combination of portability, automation and surprisingly capable astrophotography performance. It won’t replace a full astrophotography setup, but for beginners, urban astronomers, travelers and eclipse chasers, it provides an easy way to capture the night sky — and the sun — without bulky and expensive equipment.

If the DwarfLab Dwarf Mini smart telescope isn't for you

If you're after something with a little higher resolution, the DwarfLab Dwarf 3 is a larger, more powerful version with a 4K sensor and a slightly larger aperture.

ZWO Seestar S30 is a similar smart telescope with automated tracking and an included tabletop tripod, though it's recently been surpassed by the slightly pricier ZWO Seestar S30 Pro, a higher-resolution alternative that boasts superior optics and imaging.

For an overview of the top telescopes in this category, read our 2026 guide to the best smart telescopes.

User reviews

Online reviews of the Dwarf Mini often highlight its portability, simplicity and image quality. One reviewer described it as a “great piece of kit for deep space astrophotography.”

Another wrote: “I had no trouble getting it imaging within a few minutes out of the box,” praising the image quality, autofocus, GoTo accuracy, tracking, and the app. “It's a brilliant piece of kit,” said another user.

However, several users also reported poor quality in planetary images — and that’s certainly true (though it can find the moons of Jupiter).

How we tested the DwarfLab Dwarf Mini smart telescope

Our observations took place on a few clear nights during February and March 2026, in temperatures down to lows of 43 degrees Fahrenheit (6 degrees Celsius) and highs of about 54 F (12 C). Light pollution was between 5 and 6 on the Bortle scale — urban conditions with bright city lighting. Battery life averaged around 4 hours, though longer imaging sessions were supported using an external USB power bank connected to the telescope's USB-C slot.

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