Sky-Watcher Flextube 250Pi SynScan GoTo Collapsible Dobsonian-S11815 (LIMITED QUANTITIES)
| Article number: | S11815 |
| Availability: | In stock |
| Delivery time: | In Stock |
Sky-Watcher Flextube 250Pi SynScan GoTo Collapsible Dobsonian
Combining space-saving design and a simple floor base with sophisticated gear for seeking out celestial treasures, the Flextube 250Pi SynScan GoTo Collapsible Dobsonian Telescope from Sky-Watcher offers memorable experiences in the study of the night sky. Its large 10" aperture, 1200mm focal length, and f/4.7 focal ratio deliver dazzling views of planets, the moon, nebulae, galaxies, and more. The built-in Wi-Fi allows for SynScan control through the proprietary app, which makes it easy to search out specific objects or tour the cosmos.
Optical Tube Assembly
- 10" (254mm) aperture can resolve dim deep-space objects, like wispy nebulae and galaxies
- Fast f/4.7 focal ratio ensures a wide field of view & maximum light throughput
- For astrophotography, the fast focal ratio will result in shorter exposure times versus "slower" OTAs while achieving similar results
- Long 1200mm focal length helps to produce the fast focal ratio and magnification range
- Collapsible truss system eliminates the need to disassemble the telescope after use and saves space during transport and storage, measures 31.5" when trusses are retracted and extends to 44" when set up
- Borosilicate parabolic primary mirror with aluminum coatings that bring the reflectivity to 94%
- Resolution: 0.46 arcsec (Dawes Limit), 0.55 arcsec (Rayleigh Limit)
- 64mm diameter secondary mirror; Obstruction: 25% by diameter, 6% by area
- 49" eyepiece height when aimed directly overhead at the zenith
SynScan Control
- Built-in Wi-Fi module allows the use of the SynScan smartphone app to control the base, available for Apple and Android devices
- User-friendly menu system
- Up to 5 arcmin GoTo pointing accuracy
- Brightest-Star and Two-Star assisted alignment procedures
- Sidereal, lunar, solar tracking rates
- 1x, 2x, 8x, 16x, 32x, 200x, 400x, 600x, 800x, 1000x slew speeds
Database Details:
- 42,900 objects including planets, nebulae, star clusters, and galaxies
- Tour of the night sky based on location, date, and time
- 25 user-defined objects
- Includes the complete Messier, NGC, and IC catalogs; and partial SAO catalog
Focuser:
- Crayford-style is much more precise than the traditional rack-and-pinion
- Tension control system eliminates gears, resulting in zero backlash for tack-sharp focus on dim objects, or objects like binary stars which are close together
- 2" diameter holder allows the use of larger eyepieces and imaging systems that provide a wide field of view and eye relief for more comfortable viewing of dim and small deep-sky objects
Base Details:
- Dual axis DC servo motors with encoders
- Dual encoder design keeps track of where the scope is being moved, allowing you to move it manually without the need for re-alignment
- Tension control handle allows you to add or reduce tension, increasing or decreasing the friction between the optical tube and the sideboards
- Included 10-15 VDC 1A power supply
- Dimensions: 30 x 20"