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Two models, the numbers decide

Bresser Messier 6" Dobson or Sky-Watcher Skyliner 150P Classic?

Bresser Messier 6" Dobson — 152 mm, €359. Sky-Watcher Skyliner 150P Classic — 150 mm, €357. The same method as everywhere on this site: the numbers first, the verdict from them.

Same family (150–200 mm Dobsonian): what changes between these two is aperture, bulk and price — not character.

150–200 mm Dobsonian

150×
Saturn at 150× in 152 mm — exit pupil 1.0 mm, Bortle 6 sky. Computed, not photographed.

€359seen 8 Oct 2026 at Astroshop

150–200 mm Dobsonian

150×
Saturn at 150× in 150 mm — exit pupil 1.0 mm, Bortle 6 sky. Computed, not photographed.

€357seen 8 Oct 2026 at Astroshop

Side by side

Bresser Messier 6" DobsonSky-Watcher Skyliner 150P Classic
Aperture152 mm150 mm
Focal ratio1200 mm · f/7.91200 mm · f/8.0
Typical weight19 kg18 kg
Setup time8 minutes8 minutes
Learning curve2 out of 52 out of 5
Useful magnification≤ 304×≤ 300×
Resolution (Dawes)0.8″0.8″
Observed price€359seen 8 Oct 2026 at Astroshop€357seen 8 Oct 2026 at Astroshop
Where to buySee it at Astroshop See it at Astroshop

Choose the Bresser Messier 6" Dobson if…

The numbers give it few arguments — the other wins this one.

Full page on the Messier 6" Dobson →

Where to buy

Also search at First Light Optics · Optique Unterlinden · Pierro Astro · Teleskop-Express (searches; neither price nor stock checked)

1 of these 5 links earn us a commission, marked above. Sorted by price, never by what pays. How this site is funded.

Choose the Sky-Watcher Skyliner 150P Classic if…

  • budget decides: €2 less
  • it has to be carried: 1 kg lighter

Full page on the Skyliner 150P Classic →

Where to buy

Also search at First Light Optics · Optique Unterlinden · Pierro Astro · Teleskop-Express (searches; neither price nor stock checked)

1 of these 5 links earn us a commission, marked above. Sorted by price, never by what pays. How this site is funded.

The same sky, through both

These circles are simulations, computed from the aperture, the magnification and the sky — indicative, not exact. A real night also depends on the turbulence, your eyes and your experience. Closer to the truth than the photo on the box; still not a promise.

The Moon

Messier 6" Dobson · Detailed
Skyliner 150P Classic · Detailed

Saturn

Messier 6" Dobson · Detailed
Skyliner 150P Classic · Detailed

The Orion Nebula

Messier 6" Dobson · Recognisable
Skyliner 150P Classic · Recognisable

The Andromeda Galaxy

Messier 6" Dobson · Recognisable
Skyliner 150P Classic · Recognisable
Photo credits

These thumbnails are built from real photographs, scaled and darkened by the same arithmetic as the large view.

  • The Moon: NASA Scientific Visualization Studio / LRO, public domain
  • The Orion Nebula: NASA, ESA, M. Robberto (heic0601a), CC BY 4.0
  • The Andromeda Galaxy: Adam Evans, Wikimedia Commons, CC BY 2.0

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