Celestron 90 SLT Maksutov Cassegrain

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

Specifications
OPTICAL TUBE INFO:
Optical Design: Maksutov-Cassegrain
Aperture (mm): 90 mm (3.54″)

Focal Length: 1250 mm (49″)
Focal Ratio: 14
Focal Length of Eyepiece 1: (mm) 25 mm (0.98″)

Magnification of Eyepiece 1: 50x
Focal Length of Eyepiece 2: (mm) 9 mm (0.35″)
Magnification of Eyepiece 2: 139x
Finderscope: StarPointer
Star Diagonal: 1.25

Mount Information:
Mount Type: Motorized Altazimuth
Accessory Tray: No Tool, Quick release
Tripod: Steel
Highest Useful Magnification: 213x
Lowest Useful Magnification: 13x
Limiting Stellar Magnitude: 12.3

Resolution (Rayleigh): 1.55 arc seconds
Resolution (Dawes): 1.29 arc seconds
Light Gathering Power (Compared to human eye): 165x
Apparent Field of View: 1 degree
Linear Field of View (@1000 yds): 53 ft (16 m)
Optical Coatings: Fully-Coated
Slew Speeds: Nine slew speeds
Tracking Rates: Sidereal, Solar and Lunar
Tracking Modes: Alt-Az, EQ North and EQ South
Alignment Procedures; SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align
Computer Hand Control: Fully Computerized / Flash Upgradeable
Database: 4,000 Object Database
GPS: Optional SkySync GPS Accessory (93969)
Software: Starry Night Special Edition

Overview
Designed to be an affordable entry level to mid-level computerized GoTo telescope, the NexStar SLT 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!

What’s in the box
90 MAK Tube
SLT motor Arm
9mm Eye Piece
25mm Eye Piece
Star Pointer
Accessory Tray