Celestron NexStar 76 GT Telescopes 31122

The NexStar - GT series of Telescopes shares a common heritage in features and function. Each NexStar telescope includes the latest state-of-the-art computerized GoTo technology, amazingly easy-to-use features and ready-to-use components. After the computer guides you through a simple set up, each Celestron Nex Star Telescope will point itself to the object you choose from its stored database of astronomical objects without referring to star charts!

To assist in the star alignment, the NexStar uses a lightweight StarPointer Finderscope. The StarPointer is the quickest and easiest way to point your telescope exactly to the desired object in the sky. It's like having a laser pointer that you can shine directly onto the night sky. No need to worry about the inverted images you see through traditional finders, just align the red dot seen through the StarPointer with the desired star in the sky. It's that easy.

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.

The NexStar GT's deluxe features combine with Celestron's uncompromising optical standards to give amateur astronomers one of the most sophisticated and easy to use telescopes available on the market today.

The NexStar 76GT provides a step up in aperture from the 60GT increasing light gathering by 60%. Celestron NexStar 76 GT Telescope offers all of the advantages of a Newtonian design at a 3" aperture. The superb optics of NexStar-76GT Telescope offer dazzling images of the moon; Saturn and its rings; Jupiter, with its belts and moons; and hundreds of deep-sky objects, including galaxies, nebulae and star clusters. Because of the Newtonian design, the mirror of Nexstar76-GT gives fully color-corrected views that are best suited for astronomical use.

Every Celestron NexStar-GT Telescope includes a version of The Sky software Level 1 Planetarium software for exploring the Universe on your PC and printing out custom star charts of the sky. In addition, you receive the Nex Star Observer's List (NSOL) control software. Just connect your Celestron NexStarGT Telescope to your laptop or PC (with optional RS-232 cable) for click-and-slew ability to any object in the NexStar 's database.

Specifications for Celestron NexStar-76-GT Telescopes (item #31122):

Design:		Reflector
Aperture:		76mm
Focal Length:		700mm
F/ratio of the Optical System:		9.2
Objective Coatings:		Aluminum
Highest Useful Magnification:		180x
Lowest Useful Magnification:		11x
Resolution: Rayleigh Criterion: Dawes Limit:		1.82 arc seconds 1.53 arc seconds
Light Gathering Power:		118x unaided eye
Field of View: Standard Eyepiece:		1.8°
Linear Field of View (at 1000 yds):		95 feet
Eyepiece Magnification:		28x (25mm); 70x (10mm)
Optical Tube Length:		27 inches
Input Voltage Maximum:		12 V DC Nominal 18 V DC Max.
Minimum:		8 V DC Min.
Batteries Required:		8 AA Alkaline
Power Supply Requirements:		12 VDC-750 mA (Tip positive)
Motor: Type Resolution:		DC Servo motors with encoders, both axes .26 arc sec
Slew speeds:		Nine slew speeds: 4° /sec, 2° /sec, 1°/sec, .5 /sec, 32x, 16x, 8x, 4x, 2x
Hand Control:		Double line, 16 character Liquid Crystal Display 19 fiber optic backlit LED buttons
Fork Arm:		Cast aluminum
Software Precision:		16 bit, 20 arc sec. calculations
Ports:		RS-232 communication port on hand control
Tracking Rates:		Sidereal, Solar and Lunar
Tracking Modes:		Alt-Az, EQ North & EQ South
Alignment Procedures:		AutoAlign, 2-Star Alignment, Quick-Align
Database:		25 user defined programmable object. Enhanced information on over 100 objects
Total Object Database:		4,033 Objects
Telescope Weight:		12 lb.

Features of Celestron NexStar 76 GT Telescope (# 31122):

• Computerized Hand Control
• RS-232 Communication Port on hand control
• StarPointer Finderscope
• The Sky Level I CD-ROM
• Aluminum Objective Coatings
• Motorized Altazimuth Mount
• 4,033 Objects Database
• Nine slew speeds

Package Contents:

• Celestron NexStar 76 GT Telescope (31122)
• 1-1/4" 25mm (28x), 10mm (70x) Eyepieces
• Computerized Hand Control
• StarPointer Finderscope
• The Sky Level I CD-ROM
• NSOL Control Software
• Battery pack (for 8 user-supplied AA batteries)
• Sturdy, Adjustable Aluminum Tripod with Accessory Tray