The Sky-Watcher Star Discovery 90i has been designed to be controlled wirelessly with your Smartphone or Tablet, using the free SynScan App for iOS or Android. The supplied Synscan Wi-Fi module creates its very own Wi-Fi network, so the mount can be used anywhere, without any reliance on internet access. After entering your coordinates into the App and following a simple alignment procedure, you are ready to explore the universe using the Apps intuitive touchscreen menu. The App can speed up alignment by inputting your time, date and location from your device.Optical performance
An f10 focal ratio achromat refractor with a 90mm clear aperture is capable of serious planetary views including Saturn's ring system as wel as Jupiter's cloud belt structure. Lunar views are breathtaking revealing hundreds of craters in stunning detail. With 90mm of unobstructed aperture there are numerous galaxies and nebula within reach of this instrument.
The Star Discovery 90i and SynScan App provides full computerised goto control, allowing the telescope to be automatically slewed to any one of the objects in the Apps extensive database of 10,000+ celestial objects. Incorporates Sky-Watchers Freedom-Find patented Dual-Encoder Technology, which allows the telescope to be moved manually in either axis without the mount losing its positional information. This gives the user enormous freedom, convenience and flexibility during observational sessions.
The Sky-Watcher Star Discovery 90i is a classic two-element, air-spaced, achromatic refractor, this optical design is renowned for high contrast views as there is no central obstruction tus allowing maximum light transmission. The telescope is easy to transport, and with its long focal length it is ideal for the detailed high-power study of the Moon, Planetary details and other objects in our solar system, providing crisp contrasty images. When combined with a Sky-Watcher 1.25" Erecting prism (code 20376, available separately) the telescope can be used during the day for high power fully corrected terrestrial observations.SynScan App Database:
Total 10,000+ Objects. Deep Sky Objects: 10759, including Messier, NGC, IC, Caldwell Catalogues, Named DSOs, Named Stars: 305, Double Stars: 55, Solar system objects: 7 planets, Sun , Moon. (Unlimited objects when working with a 3rd party planetarium software).SynScan App Alignment Method:
Brightest Star Alignment, North-Level AlignmentSynScan App's Other Features:
Tonight's Best Sky Tour, Point and Go with a mobile device, Identification of Celestial Objects, Remote control over Internet, User defined objects, Pointing Accuracy Enhancement (PAE)Download the SynScan APP hereFeatures
Magnifications (with eyepieces supplied): x36 & x90
Highest Practical Power (Potential): x180
Objective Lens Diameter: 90mm
Telescope Focal Length: 900mm (f/10)
Eyepieces Supplied (1.25"): 10mm & 25mm
Red Dot Finder
90° Star Diagonal
1.25 Rack & Pinion Focuser
Star Discovery AZ Go-To Alt-Azimuth Go-To Mount with Dual-Axis Tracking
Freedom-Find Dual Encoder Technology
Synscan Wi-Fi Adaptor Module
Controller: Free SynScan App for iOS and Android mobile device or Synscan Hand Controller (available separately)
SynScan App Database: Total 10,000+ Objects. Deep Sky Objects: 10759, including Messier, NGC, IC, Caldwell Catalogues, Named DSOs, Named Stars: 305, Double Stars: 55, Solar system objects: 7 planets, Sun , Moon. (Unlimited objects when working with a 3rd party planetarium software).
SynScan App Alignment Method: Brightest Star Alignment, North-Level Alignment
SynScan App's Other Features: Tonight's Best Sky Tour, Point and Go with a mobile device, Identification of Celestial Objects, Remote control over Internet, User defined objects, Pointing Accuracy Enhancement (PAE)
45mm Sky-Watcher/Vixen type dovetail saddle
Interface: SynScan Hand Control Port, DSLR Shutter Release Port (optional cables available separately)
Connectivity: ASCOM platform for Windows PC, Mobile planetarium App for iOS and Android ( SkySafari Plus/Pro, more are coming).
Power Requirement: 12v DC 1Amp Power Supply (Tip Positive) or 8 x AA Batteries (not supplied)
Sky-Watcher 7Ah or 17Ah Power Tank Recommended
Stainless Steel Tripod with Accessory Tray