Features

Fully computerized Altazimuth mount
Good for terrestrial and celestial observing
BONUS Astronomy Software download with a 10,000 object database, printable sky maps and 75 enhanced images
Quick-release fork arm mount, optical tube and accessory tray for quick no tool set up
High quality 90 mm Maksutov-Cassegrain
Sturdy stainless steel tripod and accessory tray included
StarPointer finderscope to help with alignment and accurately locating objects

Description

Designed to be an affordable entry level to mid-level computerized GoTo telescope, the Celestron NexStar 90SLT refractors, reflectors, and Maks are available in the most popular sizes and are loaded with valuable design features. With preassembled, adjustable stainless steel tripods and quick release fork arms and tubes, NexStar SLT telescopes can be set up in a matter of minutes – with no tools required! You can see details of the lunar surface, Venus and its phases, polar caps on Mars, Jupiter and its four moons, Saturn with its rings plainly visible and much more! Most NexStar SLTs can also be used as a land-based spotting telescope.

Intelligent Design
Powered by 8 AA (user supplied) batteries or an optional AC adapter (#18778), these NexStar GoTos love to travel. The internal battery compartment provides power to the high precision servo motors for rigid low-vibration performance while eliminating cord wrap issues associated with external battery packs.

With the NexStar’s ergonomically designed hand control, the user is free to remove the hand control from its holder for remote use or leave it cradled for hands-free operation. With a touch of a button, you can select the object catalog, change the slew speed, view fascinating information about an object or simply know if a desired object is visible in the sky.

Celestron’s Revolutionary SkyAlign
Using Celestron’s patented SkyAlign, simply input the date, time and location into the hand control then slew the telescope to any three bright celestial objects in the sky. You do not need to know the names of the stars – you can even pick the Moon or bright planets!

Specification

GPS
GPS DeviceOptional SkySync GPS Accessory
Optical Tube
Aperture90mm
Focal Length1250mm
Focal Ratio14
Focal Length of Eye PiecesEyepiece 1: 25mm Eyepiece 2: 9mm
Magnification of EyepiecesEyepiece 1: 50x Eyepiece 2: 139x
FinderscopeStarPointer
Useful Magnification13x to 213x
Limiting Stellar Magnitude12.3
ResolutionRayleigh Resolution: 1.55Arc Seconds Dawes Resolution: 1.29Arc Seconds
Light Gathering Power165x
Apparent Field of View1
Optical CoatingFully-Coated
Number of Slew Speeds9
Tracking RatesSidereal, Solar and Lunar
Tracking ModesAlt-Az, EQ North and EQ South
Alignment ProceduresSkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align
Physical
Form FactorFreestanding
Colour(s)Black
Pack QuantityTotal 1 Piece(s)