Sky-Watcher Synta N-254/1200 10" GoTo Dobsonian Telescope (Sky-Watcher, SKU: SW-1321) is a Newtonian reflector with a 254 mm primary mirror, a collapsible Flextube optical tube and a motorized Dobsonian mount with the SynScan GoTo system. Its large aperture enables visual observation of the Moon, planets, star clusters, nebulae and galaxies, while automatic slewing and tracking make celestial objects easier to locate. The Flextube design reduces the length of the optical tube for storage and transportation without requiring it to be disassembled into separate sections.

Applications

Moon

planets

star clusters

nebulae

aircraft

Key features

• parabolic primary mirror with a diameter of 254 mm and a focal length of 1200 mm
• f/4.7 focal ratio suitable for observing Solar System and deep-sky objects
• collapsible Flextube design requiring no tools or separation of the optical tube into individual sections
• motorized Dobsonian mount with automatic GoTo slewing and dual-axis tracking
• SynScan AZ hand controller with a database of 42,900 astronomical objects
• built-in Wi-Fi module enabling control through the SynScan Pro application
• Freedom Find technology with dual encoders, allowing the telescope to be moved manually without losing positional information
• 2" Crayford focuser with an adapter for the 1.25" standard
• adjustable optical-tube tension in the altitude axis

Package contents

• Sky-Watcher 254/1200 mm Flextube optical tube with a 2" focuser and 1.25" adapter
• motorized Dobsonian base with the GoTo system
• SynScan AZ hand controller
• 25 mm 1.25" Super Plössl eyepiece
• 10 mm 1.25" Super Plössl eyepiece
• straight-through 9×50 optical finderscope with bracket

Technical specifications

• manufacturer: Sky-Watcher
• model: N-254/1200 10" GoTo Flextube Dobsonian
• SKU: SW-1321
• optical system: Newtonian reflector
• primary mirror shape: parabolic
• primary mirror diameter: 254 mm
• focal length: 1200 mm
• focal ratio: f/4.7
• secondary mirror diameter: 58 mm
• highest practical magnification: 508×
• focuser: 2" single-speed Crayford
• focuser adapter: 2" / 1.25"
• mount: motorized alt-azimuth Dobsonian mount
• control system: SynScan AZ GoTo
• additional control: built-in Wi-Fi module and SynScan Pro application
• controller database: 42,900 objects, including the Messier, NGC and IC catalogues, part of the SAO catalogue and 25 user-defined objects
• alignment methods: Brightest Star Alignment or Two-Star Alignment
• encoder system: Freedom Find dual-axis encoders
• motor type: DC servo motors
• motor encoder resolution: 1,620,000 counts per revolution
• main-axis encoder resolution: 11,748 counts per revolution
• slewing speeds: 1×, 2×, 8×, 16×, 32×, 200×, 400×, 600×, 800× and 1000×
• tracking rates: sidereal, lunar and solar
• tracking method: dual-axis tracking
• GoTo pointing accuracy: up to 5 arcminutes
• power supply: 10–15 V DC, 1 A
• power connector: 2.1 mm, centre-positive
• AC power adapter: not included
• retracted optical-tube length: 800 mm
• extended optical-tube length: 1120 mm
• optical-tube outer diameter: approximately 289 mm
• optical-tube weight with accessories: approximately 15 kg
• solar-observation safety: a suitable filter installed over the front aperture, a full light shroud for the Flextube structure and a covered finderscope are required

The combination of a 254 mm aperture, collapsible Flextube optical tube and SynScan GoTo control enables extensive visual observations while providing convenient slewing, tracking and easier equipment storage.