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Sky-Watcher Skyliner-250P FlexTube

CHF 769.00incl. Swiss VAT

Will be ordered for you
Timeframe: 10 days to 3 weeks
Estimated shipping: Between November 27 and December 2, 2026

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Product description

Product description

Sky-Watcher Skyliner 254/1200 - The visual giant at your fingertips

Optical power, mechanical fluidity and ease of use: this 254 mm Dobson ticks all the boxes!
With a 254-mm parabolic primary mirror, this telescope captures striking details of the faintest deep-sky objects while delivering sharp planetary images. Its dual-format 1.25″ / 2″ Crayford focuser ensures precise focusing, even with heavy accessories.

An intuitive, stable Dobson mount

The Dobson mount is based on a simple, robust alt-azimuth principle, popularized in the 70s by John Dobson. The optical tube pivots on two axes thanks to a wooden base, with an adjusted friction system that allows fluid movement by hand while maintaining the chosen position. The result: a telescope quick to set up and pleasant to usewithout complex adjustments.

A parabolic mirror for sharp, high-contrast images

Unlike spherical mirrors, parabolic mirrors correct the optical aberrations typical of short focal length telescopes. Here, RAQ™ (Radiant™ Aluminum Quartz) treatment ensures up to 94 % reflectivitywith excellent durability over time. The ultra-thin 0.5 mm secondary support reduces diffraction for more punctual stars.

Benefits

  • Excellent light-gathering capacity for weak objects
  • Simple, stable and quick to use
  • Precise, sturdy Crayford eyepiece holder
  • Parabolic mirrors with high-reflectivity coating
  • Excellent visuals

Conclusion

The Sky-Watcher Skyliner 254/1200 is the ideal companion for the demanding amateur astronomer. Whether you want to scrutinize the fine details of Jupiter, follow the phases of Venus or dive into the Milky Way, this telescope offers the power, precision and simplicity you need. A safe, high-performance choice for advanced visual observation.

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Frequently asked questions

Frequently asked questions

What can you see with the Sky-Watcher Skyliner-250P?

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?

Two eyepieces are included: 20 mm and 12.5 mm. With a focal length of 1,200 mm, they provide 60× and 96× magnification. To determine the magnification of an eyepiece, divide the telescope's focal length by the eyepiece's focal length.

Is it easy to carry?

It is an imposing instrument: the tube weighs about 15 kg and is approximately 112 cm long, and the mount weighs about 12.2 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: a precise adjustment is clearly visible at high magnifications. The Sky-Watcher Collimation Guide (EN) explains the procedure.

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?

254 mm Newton Flextube optical tube, Dobsonian mount with accessory tray, 2″ Crayford eyepiece holder with 10:1 dual-speed focuser and 1.25″ and 2″ adapters, 9×50 finder scope, 12.5 mm and 20 mm eyepieces, smartphone adapter.

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″
Corrector / Reducer Available
Yes
Tube length
112 cm
Tube weight
15 kg
Uses
Visual, Planetary, Deep Sky
Frame type
Dobson
GoTo
No
ST4 Autoguiding Mount
No
Counterweight
Not required
Frame weight
12.2 kg
Kit contents
Newton Flextube 254 mm Optical Tube Dobsonian mount with accessory tray 2″ Crayford focuser with 10:1 dual-speed ratio and 1.25″ and 2″ adapters 9×50 finder scope 12.5 mm and 20 mm eyepieces Smartphone adapter
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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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