NexStar 90SLT Computerized Telescope

Item # 22087

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$419.95

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Quick Overview

Features

General Features

High quality 90mm 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
“The SkyX – First Light Edition” astronomy software with a 10,000 object database, printable sky maps and 75 enhanced images

Computerized Mount Features

Proven NexStar computer control technology
Database allows telescope to locate over 4,000 celestial objects
SkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment process
Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
Internal battery compartment to prevent cord wrap during use
Auxiliary port for additional accessories such as GPS accessory
Includes NSOL telescope control software for basic control of your telescope via computer (with optional RS-232 cable)
Compatible with optional NexRemote telescope control software, for advanced control of your telescope via computer

Multimedia Gallery

Details

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 (patent pending), 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!

Additional Information

Optical Design	Maksutov-Cassegrain
Aperture (mm)	90 mm (3.54 in)
Focal Length (mm)	1250 mm (49 in)
Focal Ratio	14
Eyepiece 1 (mm)	25 mm (0.98 in)
Magnification 1	50 x
Eyepiece 2 (mm)	9 mm (0.35 in)
Magnification 2	139 x
Finderscope	StarPointer
Star Diagonal	1.25
Mount	Motorized Altazimuth
Accessory Tray	No Tool, Quick release
Tripod	Steel
Weight (lbs)	12 lbs (5.44 kg)
Highest Useful Magnification	213 x
Lowest Useful Magnification	13 x
Limiting Stellar Magnitude	12.3
Resolution (Rayleigh)	1.55 arc seconds
Resolution (Dawes)	1.29 arc seconds
Light Gathering Power	165 x
Angular Field of View (deg)	1 °
Linear Field of View (@1000 yds)	53 ft (16 m)
Optical Coatings	Fully-Coated
Slew Speeds	Nine slew speeds: 3°/sec, 2°/sec, 1°/sec, 64x, 32x, 16x, 8x, 4x, 2x
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)