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Dobson Celestron StarSense 254mm

CHF 1'279.00incl. Swiss VAT

Reference SCOPE-0023

Will be ordered for you
Timeframe: 10 days to 3 weeks
Estimated shipping: Between November 21 and 26, 2026

Free shipping in Switzerland on orders of 200 CHF or more
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Product description

Product description

Dobson StarSense 250mm: Total immersion in the Universe

The Dobson StarSense 250mm, featuring innovative StarSense technology, transforms your observing sessions into an interactive and intuitive experience. Designed to deliver exceptional optical performance, this telescope is ideal for serious amateurs and ambitious beginner astronomers. I personally started my journey with a 254mm model! And I still have it—it’s an excellent and optimal aperture. With its 250mm mirror and sturdy mount, it opens a window to the universe like never before.

StarSense Technology: Your Personal Sky Guide

  • Patented StarSense technology: Analyzes star patterns to instantly locate the telescope's position.
  • Intuitive interface : Follow the arrows on your smartphone screen to point at your target. When the crosshairs turn green, the object is centered and ready to be observed.
  • Application Powered by SkySafari™ : Explore a personalized list of the best objects on view, enriched with detailed descriptions and educational audio.

A Robust and Ergonomic Dobson Base

  • Precision bearings : Large Teflon bearings at altitude and azimuth for smooth, controlled movements.
  • Integrated brake at altitude : Adjust tension for precise movements, even with a slight imbalance.
  • Ergonomic handle : Easily orientate the tube without introducing heat into the optical system.

Side reinforcements enhance stability, guaranteeing a smooth experience even for objects requiring frequent adjustment.

Powerful optics for breathtaking views

  • 250 mm (10") parabolic mirror : Equipped with advanced XLT optical coatings to capture an abundance of light and reveal the finest details.
  • Planetary observation : Admire Jupiter's cloud bands, the Great Red Spot, Saturn's rings and lunar craters in incredible clarity.
  • Deep sky objects : Explore the Orion and Lagoon nebulae, the Andromeda galaxy and star clusters like the Pleiades.
  • Top quality : Low-expansion glass mirrors guarantee image stability, even under fluctuating temperatures.

Precision Focus

  • Focuser Crayford 2 inches : Smooth, precise focusing.
  • Universal compatibility : Includes adapter for 1.25" eyepieces and extension tube for maximum flexibility.
  • Focus lock : Maintains perfect sharpness for extended observation sessions.

A Versatile Experience, In Town or Under a Dark Sky

Even under light-polluted city skies, the Dobson StarSense 250mm is capable of revealing planets, bright nebulae and star clusters. Transport it to darker skies to explore hundreds more celestial objects, offering a truly immersive experience.

Accessories included to get you started

  • Plössl 25 mm eyepiece : A wide, clear view for total immersion.
  • StarPointer™ red dot finder: Simplifies initial centering of celestial objects.
  • Collimation tool : Keeps your optics perfectly aligned.
  • Integrated eyepiece holder : Keep your accessories organized and within easy reach.
  • Protective caps : Protect the primary mirror and eyepiece holder.

Smartphone compatibility and optional accessories

  • PowerTank Glow 5000: Recharge your smartphone and preserve your night vision with a USB battery and red light (sold separately).
  • USB cooling fan : Accelerate primary mirror warm-up for faster, sharper images.

Conclusion

The Dobson StarSense 250mm is much more than a telescope: it's a gateway to the universe. Whether you're a novice or an experienced observer, it offers exceptional performance and a rewarding observing experience, perfectly suited to all levels.

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Frequently asked questions

Frequently asked questions

What can you see with the Celestron StarSense Explorer 254?

The Moon in great detail and the planets: Jupiter’s bands and moons, Saturn’s rings. With a diameter of 254 mm, it captures a great deal of light: under a very dark sky, bright galaxies and nebulae become visible. Its maximum useful magnification is approximately 508× (2 × the diameter in mm); in practice, atmospheric turbulence often limits observation to lower magnifications.

Which eyepieces are included, and what are their magnifications?

Included eyepiece: 25 mm. With a focal length of 1,200 mm, it provides 48× magnification. To calculate the magnification of an eyepiece, divide the telescope's focal length by the eyepiece's focal length.

Is it easy to carry?

It can still be transported by car: the tube weighs about 13.24 kg and is about 111.8 cm long, and the mount weighs about 11.6 kg. The tube and the base can be separated for transport.

Should we aim it at him?

Yes, just like any Newtonian telescope. A quick check every now and then is enough, especially after transporting it. With a collimation laser, it’s quick and easy. At f/4.7, it’s more demanding: precise alignment is clearly visible at high magnifications.

Can we take pictures?

The included smartphone adapter lets you take souvenir photos of the Moon and the planets—but that's all. Deep-sky photography isn't possible: the mount doesn't track the sky's movement.

What's in the box?

Optical tube, Dobsonian mount, 25 mm eyepiece, 2″ Crayford eyepiece holder, StarPointer red-dot finder, StarSense Explorer smartphone mount, StarSense Explorer app unlock code, eyepiece holders, collimation cap, Celestron Starry Night Basic Edition software.

Technical specifications

Technical specifications

Technical specifications

Optical type
Newton
Diameter
254 mm
Focal length
1,200 mm
Focal Ratio (f/D)
f/4.7
Maximum magnification
508 ×
Separating power
0.46″
Lens holder
2" Crayford focuser, includes a 2" extension tube and a 2"-to-1.25" adapter
Corrector / Reducer Available
Yes
Tube length
111.8 cm
Tube weight
13.2 kg
Uses
Visual, Planetary, Deep Sky
Frame type
Dobson
GoTo
No
Counterweight
Not required
Frame weight
11.6 kg
Kit contents
Optical Tube Dobsonian Mount 25 mm Eyepiece 2″ Crayford Eyepiece Holder StarPointer Red-Dot Finder StarSense Explorer Smartphone Mount StarSense Explorer App Unlock Code Eyepiece Holders Collimation cap Celestron Starry Night Basic Edition software
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How to Care for Your Instrument

Here are a few accessories we've selected for this model, depending on your needs.

Documentation

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