Celestron StarSense Explorer DX 5" - Smartphone app-enabled Schmidt Cassegrain Telescope

The Celestron StarSense Explorer DX 5" is a highly capable first telescope for someone who wants to see far more than the obvious night-sky targets, without first having to learn how to find them.

Saturn’s rings, Jupiter’s cloud belts and moons, rich star clusters, bright nebulae and a selection of galaxies all come within reach. From New Zealand, southern favourites such as Omega Centauri, 47 Tucanae and the Carina Nebula give you plenty to explore, while planets and double stars remain rewarding even from towns and cities.

StarSense Explorer makes accessing all of that considerably easier. The app shows you objects currently available to observe, so you do not need to know what is in the sky before you begin. Choose something that interests you and follow the on-screen arrows as you move the telescope manually towards it. When the bullseye turns green, look through the eyepiece.

That makes the DX 5 particularly appealing for a first-time owner. You still enjoy the direct experience of finding and viewing objects through a traditional telescope, but without needing to master star charts or star-hopping before you can start seeing worthwhile targets.

The Schmidt-Cassegrain design then adds a different kind of advantage. It packs a 1250mm focal length into a tube only around 33cm long, giving you excellent reach for planets and distant subjects without the length of many conventional telescope designs. The enclosed optics also help protect the mirrors, while the short tube makes the telescope easy to carry, transport and take outside whenever conditions are good.

During the day, the same telescope can be used for distant terrestrial subjects such as boats, coastlines, hills and wildlife, giving the DX 5 genuine day-and-night versatility.

For someone buying their first quality telescope, the DX 5 offers a very appealing balance: impressive things to see, StarSense guidance to help you find them, and a compact design that is easy to live with.

Why Choose the StarSense Explorer DX 5"?

• Rewarding astronomy from the outset — explore planets, star clusters, bright nebulae, double stars and brighter galaxies.
• StarSense smartphone guidance — shows you what is currently visible and guides you towards your chosen target.
• No previous knowledge of the night sky required — ideal for a first-time owner who wants to start observing rather than first learning star-hopping.
• Excellent planetary capability — Saturn’s rings, Jupiter’s cloud belts and moons, and impressive lunar detail are all within reach.
• Compact Schmidt-Cassegrain design — a 1250mm focal length in a short optical tube that is easy to carry and transport.
• Dual-axis slow-motion controls — allow precise positioning and make following objects easier at higher magnification.
• Daytime as well as night-time viewing — the supplied erect-image diagonal gives a correctly oriented view of distant terrestrial subjects.

What Can You See?

The DX 5 gives you a varied night sky to explore.

Saturn’s rings are clearly visible, while Jupiter shows its four bright Galilean moons and major cloud belts. When conditions and timing cooperate, finer details such as the Great Red Spot can also be seen. Mars can reveal surface markings when favourably positioned, and the Moon offers an enormous amount of detail across craters, mountains, ridges and changing shadows.

Beyond the Solar System, New Zealand observers can enjoy Omega Centauri, 47 Tucanae and the Carina Nebula, along with open clusters, double stars, planetary nebulae and brighter galaxies. Under darker skies, more faint objects become accessible and brighter deep-sky targets reveal more structure.

You do not need to travel to a remote dark-sky site every time you want to use it. Planets, the Moon, double stars, clusters and stronger deep-sky objects remain worthwhile from towns and cities. Darker skies simply allow the 125mm aperture to reach further.

Daytime Viewing

The DX 5 is also well suited to long-distance terrestrial viewing.

Its long focal length gives useful magnification for boats offshore, coastlines, hills, mountain features and wildlife, while the supplied erect-image diagonal produces an upright, correctly oriented view.

During the day you point the telescope manually using the red-dot finder and slow-motion controls. StarSense navigation itself is designed for the night sky.

The compact optical tube is particularly convenient here: you get substantial reach without having to manage a long telescope.

How StarSense Explorer Works

StarSense Explorer uses your smartphone camera and Celestron’s dedicated StarSense dock to recognise actual star patterns overhead and determine where the telescope is pointing.

After a simple initial alignment, the app generates a list of objects currently available to observe. Choose a target and arrows guide you as you move the telescope by hand. As you get closer, the guidance becomes increasingly precise; when the bullseye turns green, the object is ready to view through the eyepiece.

This is not a motorised GoTo telescope and it does not automatically track objects. StarSense provides the navigation, while you remain in control of the telescope.

That gives you the simplicity of a manual telescope with a much easier way to find your way around the sky.

DX Mount, Slow-Motion Controls & Practical Design

The DX 5 uses a manual Alt-Azimuth mount on an adjustable full-height tripod.

For larger movements, simply move the telescope by hand. Once you are close to the target, geared slow-motion controls on both axes allow much finer adjustment.

That precision is particularly useful for planets and other higher-magnification targets, where even a small movement of the telescope can shift the object significantly within the eyepiece.

Celestron’s StarBright XLT coatings help maximise light transmission and contrast, while the enclosed Schmidt-Cassegrain optical system helps protect the mirrors from dust and contamination.

The supplied erect-image diagonal, red-dot finderscope and conventional eyepieces also mean the telescope remains fully usable without a smartphone whenever you prefer traditional manual observing.

FAQ's

Is the StarSense Explorer DX 5" suitable as a first telescope?

Yes. It is particularly well suited to a first-time owner who wants a high-quality telescope with enough capability to explore planets and deep-sky objects without first learning how to navigate the night sky manually.

Does StarSense move or track the telescope automatically?

No. StarSense shows you where to point and guides you towards the target, but you move the telescope yourself. The dual-axis slow-motion controls then allow precise adjustments and make it easier to follow the object.

Can I use the DX 5 during the day?

Yes. The supplied erect-image diagonal provides a correctly oriented terrestrial view, while the long focal length is particularly useful for distant subjects such as boats, hills, coastlines and wildlife.

Smartphone Compatibility

The Celestron StarSense Explorer app is available for supported iPhone and Android smartphones. Because mobile operating-system requirements change over time, we recommend checking Celestron's current StarSense Explorer compatibility information before purchase.

OPTICAL TUBE INFO:     

MOUNT INFO:  

Solar Warning   

Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result.

Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.

Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.

StarSense Explorer App Manual

StarSense Explorer 5" SCT DX Quick Setup Guide

 StarSense Explorer Telescope Basic