Celestron NexStar 9.25 GPS XLT

NexStar 9 1/4 GPS —
Unique design, advanced features, GOTO accuracy, and superb optics. You get the picture.

The 9 1/4" was already a favourite among astrophotographers and discerning visual observers, but now with the carbon fibre tube and the NexStar GPS mount, it is a formidable addition to the NexStar GPS family.

The 9 1/4" was specifically designed for visual infinity focus when using 2" eyepieces and has an optimized baffle system to benefit astrophotography by minimizing vignetting at the edge of the field of view. Its longer primary focal length and lower magnification secondary mirror contribute to a flatter field of view at the focal plane and helps to further reduce optical aberrations.

This feature packed model comes standard with a carbon fibre tube and Celestron`s renowned Star Bright multi-coatings. The NexStar 9 1/4" is compatible with the complete line of Celestron photographic and visual accessories.

What makes the NexStar 91/4" GPS great for astrophotography?

Longer focal length primary and lower magnification secondary— Contributes to a flatter focal plane with less coma and off-axis astigmatism.
Baffle design — Optimized for astrophotography. Minimizes vignetting at the edge of the field of view. This reduces light drop off at the corners of your film plane.
Carbon Fibre Tube — 1/4 the thermal expansion of aluminium which creates a more stable focus. The Carbon Fibre tube is 4 times more resistant to temperature changes than aluminium tubes, thus minimizing your need to re-focus.
Hand Figured Optics — Just like all other Celestron Schmidt-Cassegrain telescopes, the NexStar 9 1/4" optics are individually matched and hand figured to ensure the highest optical quality in every telescope.
Focus mechanism — At the heart of Celestron`s Schmidt-Cassegrain focus mechanism are pre-loaded ball bearings, not bushings, minimizing focus shift.
Heavy-duty die cast aluminium fork arms — For maximum rigidity.
Unique roller bearing design bearing and shaft — The telescope base rotates around a wide 9.5" track for maximum stability; especially important when equatorially mounted for imaging.
High quality Pittman drive motors — Made in the U.S.A., PittmanLO-COG brush-commutated DC motors offer smooth, quiet operation and long life. The motor armatures are skewed to minimize cogging which is required for low speed tracking.
Autoguider port — For interfacing an auto guider or a drive corrector for long exposure imaging or astrophotography.
Star Bright coatings — High quality multi-layer coatings maximize transmission of light to the film plane. Star Bright coatings are standard at no extra charge.

The NexStar 9 1/4" has all the features that make our NexStar GPS family so popular:

Internal Slip Ring — NexStar`s power cables and telescope accessory cables will not get wrapped around the telescope.
Integrated Handles — Carrying handles are integrated into fork arms to make lifting and transporting easier.
Levelling — Levelling accuracy, which applies to both altazimuth and equatorial mounts, is accomplished by an internal switch that levels the base to an accuracy of 1 arc minute.
Auxiliary Ports — NexStar`s auxiliary ports are located on top of the base which rotates as the telescope turns, preventing accessory cables from wrapping around the fork arms.
Optical Tube Assembly Outer Rails — An outer rail on each side of the optical tube provides rigid, flex-free movement. The mounting tolerance on the front cell allows the outer rails to expand and contract independently of the optical tube assembly.
16-Channel GPS — NexStar`s GPS unit pinpoints your exact location on Earth, while downloading the date and Universal Time down to the second.
Hand Control and Software Features — 40,000+ object database. Features include: Compass Calibration, Polar Alignment Routine, Equatorial Auto Align, Database Filter Limits, Hibernate, Auto North and Level, Wedge Align Algorithm, Quick Align, and User-Defined Slew Limits.

Included Accessories

Specification

40mm Plossl Eyepiece - 31.7mm (59x)
90° Star Diagonal - 31.7mm
9x50 Finder scope and Bracket
Computerised Fork Mount
NexStar® Hand Control Box
Global Positioning System built-in
Internal electronic compass
Visual back
Car Battery Adapter

FREE 8 X 56 BINOCULARS!

Optical Specifications
235mm (9.25") Aperture Schmidt-Cassegrain (made in the USA)
Focal Length: 2350mm
Focal Ratio: f/10.0
Star Bright XLT Multi-Coated
Highest Useable Magnification: 585x
Limiting Stellar Magnitude: 14.4
Optical Tube Length: 56cm

Mechanical Specification
Optical Tube - Carbon Fibre
Heavy Duty, motorised, dual fork arm
Fully enclosed high speed motors on both axes
Integrated hand controller built into the side of the fork arm
Unique Integrated Handle design
Optical Tube Assembly outer rails
Sturdy, Adjustable Heavy Duty Tripod
Leg Brace
Weight: 35kg

GoTo Specifications
40,000+ object database
400 user defined programmable objects.
Enhanced information on over 200 objects
Double line, 16 character Liquid Crystal Display Hand Control
Nine slew speeds: 3º/sec, 2º/sec, 0.5º/sec, 64x, 16x, 8x, 4x, 1x, 0.5x
Auto Guide port and Auxiliary Ports on drive base
RS-232 communication port on hand control
16 channel GPS Receiver

All major credit cards accepted - please phone our hotline Tel: 01588 620717