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Celestron CGX 800 SCT GoTo 8 "SC telescope on mount

 

Celestron CGX 800 SCT Goto telescope

The CGX mount resembles the cheaper CGEM-II only at first glance, but was developed from scratch and offers much more.

The 20kg mount has a real photographic payload of 25kg. So you can really work with a 25 kg payload and do not have to plan generous reserves for photography as is often the case. Thanks to the large handles, it is even easier to transport than a comparable, somewhat lighter classic equatorial mount! With the dual dovetail clamp for CG-5 (Vixen, Celestron) or CGE (3-inch Losmandy) you can easily e.g. switch between small solar telescopes and large Schmidt-Cassegrains.

To ensure that this is also fun in photography, the mount has been given powerful, responsive motors that are connected to the axles by a sturdy toothed belt. The mount reacts to control commands practically immediately, even from an autoguider. The gear play is eliminated, and since the worm wheels are also spring-loaded, the play is largely eliminated - you do not have to readjust even with larger temperature differences, worms and gears have optimal contact.

The new, large screws are handy so that you can loosen or tighten them even with gloves - the pole height adjustment has also been revised so that you can easily adjust the mount even when fully loaded. A polar finder will be available as an option, but is usually unnecessary: ​​With the All-Star-Polaralign you can position the mount on any brighter star through the telescope, and the shimmer is always superior to the polar finder for perfection. As a special feature, you can move the mount on the base plate of the extra-wide tripod head - so you can lay the center of gravity perfectly over the tripod, for the entire usable latitude range from 3 to 65 ° north or south latitude. The flat base can also be easily adapted to your own columns. Celestron provides a flange drawing for fixed installation (PDF)

As a photo mount, it is just as suitable for mobile use as for remote operation. Internal sensors (“switches”) automatically move the mount into the home position and prevent it from driving too far when panning and knocking anywhere. The internal wiring also serves for security: All connections (power, hand controller, AUX and autoguider) are in the base of the mount and do not move.

The hand controller can be controlled in the classic way via ASCOM and the hand controller (new: with USB connection) via PC, or you can use the control software included as a download, which was developed together with Planewave Instruments. Multipoint GoTo modeling, plate solving and control of the focuser are just a few of the functions that you normally have to upgrade for remote operation - this software is included with the CGX. You do not need the hand controller here, but can use the mount's USB connection directly.

The telescope

Celestron's C8 Schmidt Cassegrain telescopes have been convincing for decades and owe their good reputation to the combination of excellent optics with a compact, lightweight design. The C8 is the perfect choice if you want to get started "right" or if you want to afford a larger look.

With the adjustable counterweight, you can easily balance the telescope at any time. Thanks to the StarBright XLT coating, the optics provide clear images and collect 843 times more light than the naked eye. An optional polar finder telescope and the software routine of the hand control box make it easier to north.

DETAILED INFORMATION

Mount:

- Generous 25 kg payload, 2 ”heavy duty steel tripod with markings for quick height adjustment
- Spring-loaded worm gears with toothed belts that minimize gear play for shorter reaction times
- Internal wiring, power and accessory connections do not move with the mount
- Improved ergonomics through improved adjustment of the pole height and intuitive handles
- Home and limit switches - internal hardware stops for R.A. and Dek to avoid tangled cables and collisions with the tripod
- Follows up to 20º on both sides via the meridian, supports SkyPortal WiFi and StarSense AutoAlign modules.
- Includes sophisticated new control software (available as a download) developed in collaboration with Planewave Instruments.
- Mastered multi-point go-to modeling, focusing and plate solving. No other tax software is needed, which saves you hundreds of euros!
- Weight of the mount: 20 kg
- Tripod weight: 8.7 kg

Telescope:

- 8 "Schmidt-Cassegrain telescopes
- Aluminum tube
- StarBright ™ XLT multi-coating for maximum light transmission and an absolutely clear picture.
- 2032 mm focal length (f / 10)
- 25 mm eyepiece (81x)
- Connection option for 1.25 "accessories
- 6x30 finderscope
- Zenith prism or mirror for comfortable insight when observing objects close to zenith

TECHNICAL SPECIFICATIONS

The mount:

DESIGN: Parallactic
INSTRUMENT LOAD: 25 kg (55lbs)
TRIPOD HEIGHT: 120 to 197 cm with mounting head
TRIPOD LEG DIAMETER: 5.1 cm (2 ")
POLE HEIGHT ADJUSTMENT RANGE: 3º-65º
TRIPOD WEIGHT: 8.7 kg
MOUNTING WEIGHT: 20 kg (44 lbs)
MAX SWIVEL SPEED: 5º / second (4º / second by default)
TRACKING SPEED: Sidereal, Sun, Moon
AUX CONNECTIONS: 2 (for hand controllers and accessories
AUTOGUIDER CONNECTION: Yes
USB CONNECTION: Yes
SOFTWARE: Telescope control software for PC (as download)
SCOPE OF DELIVERY: CGX mount, CGX tripod, accessory shelf, 2 x 5kg counterweight, NexStar + hand controller, DC power cable for cigarette lighter

The telescope:


OPTICAL DESIGN: Schmidt-Cassegrain
OPENING: 203 mm (8 inches)
FOCAL LENGTH: 2032 mm
OPENING RATIO: 10
VIEWFINDER: 6x30
TUBE: aluminum
Ocular 1: 25 mm
MAGNIFICATION: 81 x
ZENITPRISMA / MIRROR: 1.25 "
COMPENSATION: StarBright XLT
LEAF MIRROR OBSTRUCTION: 6.4 cm
LEAF MIRROR OBSTRUCTION RELATIVE TO AREA: 9.8%
MIRROR OBSTRUCTION RELATIVE TO DIAMETER: 31.3%
TUBE LENGTH: 432 mm
WEIGHT: 5.7 kg