Celestron StarSense Explorer 130mm Smartphone App-Enabled Tabletop Dobsonian Telescope

Product Overview

The Celestron StarSense Explorer 130mm is a 130 mm f/5 Newtonian reflector with a parabolic primary, mounted on a tabletop Dobsonian base and paired with a smartphone dock and Celestron's StarSense Explorer app. The app reads the actual star field through your phone's camera and matches it against its own catalogue to work out where the tube is pointed, then shows on-screen arrows that walk you to a target and turn the bullseye green once it is centred in the eyepiece. At 650 mm focal length and 19.2 lb complete, it sits in the middle of the tabletop range — noticeably more aperture than the 114mm while still carrying out in one trip.

Who It's For

This is a good match if you want more light-gathering than a small tabletop gives without moving to a floor-standing Dobsonian, and you would rather spend the evening observing than learning to star-hop first. The 130 mm aperture and 650 mm focal length are a balanced combination — wide enough for clusters and nebulae, long enough to put usable magnification on the Moon and planets. It suits a backyard observer with limited storage, and travels well enough for a cottage or a dark-sky trip.

Key Features & Design

• 130 mm parabolic primary at f/5: 650 mm focal length, with a useful magnification range of 19x to 307x and a limiting stellar magnitude of 13.1.
• 345x the light-gathering power of the unaided eye: around 30% more than the 114mm model, which shows on the fainter targets.
• Two eyepieces supplied: a 25mm at 26x and a 10mm at 65x, giving both a wide finding field and a closer look in the box.
• Parabolic primary mirror in standard optical glass, with aluminium coatings and an SiO2 overcoat.
• 1.25" rack-and-pinion focuser and a StarPointer red-dot finderscope.
• Tabletop Dobsonian base: 482.6 x 482.6 x 419.1 mm (19" x 19" x 16.5"), 11 lb, in CARB-compliant melamine-faced particle board.
• 19.2 lb complete: an 8.2 lb tube and an 11 lb base, with the StarSense dock and unlock code included.

Optical / Mechanical Design

The tube is a 130 mm parabolic Newtonian at f/5, measuring 615.95 mm long by 165.1 mm in diameter. Celestron publishes its resolving power as 1.06 arcseconds by the Rayleigh criterion and 0.89 arcseconds by the Dawes limit — fine enough to split a good many double stars and to show the Cassini division on a steady night.

f/5 is a sensible middle ground for a Newtonian of this size: short enough to keep the tube at 24 inches and the whole telescope under 20 lb, slow enough to be more forgiving of collimation and of inexpensive eyepieces than the f/4 114mm. The parabolic primary is the important part of that specification — it is what keeps stars tight to the edge of the field rather than softening off-axis. A collimation cap is supplied, and the 1.25" rack-and-pinion focuser takes any 1.25" eyepiece.

Recommended Uses

Deep-sky observing of open and globular clusters, the brighter nebulae and the nearer galaxies at a 13.1 limiting magnitude. Lunar observing in detail and planetary observing at up to 307x. Double-star work near the 0.89 arcsecond Dawes limit. Guided touring with the app's list of currently visible objects and its audio descriptions. Travel and dark-sky trips, where 19.2 lb in two pieces is easy to pack. Outreach and family observing, where the app lets anyone find something themselves.

Compatibility and Accessory Notes

Eyepieces: the focuser takes 1.25" eyepieces. The supplied 25mm and 10mm cover 26x and 65x; a 6mm or a zoom is the usual next addition, with a 307x ceiling above.

Something to stand it on: the base is a tabletop design and needs a table, bench or wall at a comfortable height. Celestron's Tripod for StarSense Explorer Tabletop Dobsonian Telescopes is the purpose-made answer if you would rather not hunt for a surface each time.

Smartphone: the StarSense Explorer app runs on Android 12 and later and on iOS 18 and newer, including iPhone XR and newer. Celestron maintains the full device list at starsenseexplorer.simcur.com.

Included software: Celestron Starry Night Basic Edition ships with the telescope alongside the StarSense Explorer unlock code.

If you are unsure whether your phone will run the app, send us the model and we will check it against Celestron's list before you order.

Good to Know Before You Order

No tripod is included. The base is built to sit on a surface. A patio table or bench works; the matching tripod above is there if you want a dedicated one.

The app needs real starlight to work. It cannot orient itself in daylight and wants roughly an hour after sunset before there is enough star detail to match on. Cloud cover, haze, a bright Moon and heavy light pollution all reduce what it can lock onto.

It shows tonight's sky only. There is no date or time control in the app, so it plans the session you are about to have rather than one next month.

Tracking is manual. Objects drift across the field as the Earth turns and you nudge the tube to follow. At 307x that is a frequent small touch; at the powers most of the sky is best viewed at here, it is occasional.

It is a 1.25"-only focuser. Two-inch wide-field eyepieces do not fit, which keeps the eyepiece budget sensible but sets the widest true field you can reach.

Solar observing needs a purpose-made filter. Viewing the Sun through any telescope requires a proper solar filter fitted to the front of the tube — ask us and we will point you at one that fits this aperture.

Two-year Celestron warranty.

Frequently Asked Questions

Is it difficult to set up?

No. The tube sits in the base, an eyepiece goes in the focuser and the phone goes in the dock — a couple of minutes from cupboard to observing. Aligning the phone to the optics is a short procedure at the start of each session and the app's tutorials walk through it. Collimation is the one technical job and the included collimation cap is what you do it with.

Does the app need a subscription?

No. The unlock code is in the box and the app is yours with the telescope.

Do I need to buy anything else to use it?

Not to observe — two eyepieces, the finder and the dock are all supplied. You do need a surface to stand it on, and many owners add the matching tripod for that.

Which phones does it work with?

Android 12 and later, and iOS 18 and newer including iPhone XR and newer.

How does it compare with the 114mm and 150mm tabletops?

The 130mm gathers 345x the unaided eye against the 114mm's 265x and the 150mm's 459x, with limiting magnitudes of 13.1, 12.8 and 13.4 respectively. It is the middle choice on both weight and reach: 19.2 lb against 12.6 lb and 25 lb.

Can I use it for astrophotography?

It is built as a visual instrument. The base is manual with no tracking drive, so long-exposure imaging is outside what it does. Short-exposure lunar and planetary work held up to the eyepiece is practical.

Bottom Line

A 130 mm f/5 parabolic Newtonian on a tabletop Dobsonian base with app-guided pointing: 650 mm of focal length, a 307x useful ceiling, two eyepieces and 19.2 lb complete. The middle of the tabletop range, and the one that balances reach against portability most evenly.