Celestron AstroMaster 76EQ Newtonian Reflector Telescope

Introducció

The Celestron AstroMaster 76EQ Newtonian Reflector Telescope is designed for both terrestrial and celestial viewing, offering a powerful and user-friendly experience. It features fully-coated glass optics and a sturdy, lightweight frame, making it suitable for both adults and supervised children.

This telescope is equipped with a 76mm primary mirror and an AstroMaster German Equatorial manual mount. The mount includes two slow-motion control knobs, enabling precise adjustments to track celestial objects as they move across the night sky. The included eyepieces provide varying magnifications for detailed observation.

Image: The Celestron AstroMaster 76EQ telescope, fully assembled with its optical tube, equatorial mount, and tripod, ready for observation.

Què hi ha a la caixa

En desembalar, assegureu-vos que hi hagi tots els components que s'enumeren a continuació:

• Tub òptic
• Tripod and mount (preassembled)
• 20mm eyepiece with built-in erect image corrector
• Standard 10mm eyepiece
• Red-dot finderscope
• Manual (aquest document)

Image: The two included eyepieces: a 20mm eyepiece (left) and a 10mm eyepiece (right), essential for varying magnification levels.

Instruccions de configuració

The AstroMaster 76EQ telescope is designed for quick and easy setup without the need for additional tools.

1. Tripod and Mount Assembly: The tripod and German Equatorial mount come pre-assembled. Extend the tripod legs to the desired height and secure them. Ensure the accessory tray is properly attached to the spreader bars for stability.
2. Attaching the Optical Tube: Carefully place the optical tube onto the mount's dovetail clamp. Apretar el clamp screws to secure the tube firmly.
3. Instal·lació del Finderscope: Slide the StarPointer red dot finderscope into its bracket on the optical tube. Tighten the small screw to hold it in place. Remove the plastic battery tab if present.
4. Inserció d'oculars: Loosen the thumbscrew on the focuser. Insert the desired eyepiece (e.g., the 20mm eyepiece for lower magnification) into the focuser. Tighten the thumbscrew to secure the eyepiece.
5. Equilibrant el telescopi: For optimal performance and smooth tracking, balance the telescope by adjusting the counterweights on the counterweight shaft and sliding the optical tube within its clamp. Refer to the detailed manual for precise balancing procedures.

Imatge: Una imatge detallada view of the telescope's equatorial mount, showing the slow-motion controls and the connection point for the optical tube.

For advanced setup and alignment, including polar alignment for astronomical observation, consult the comprehensive manual provided with your telescope or visit the Celestron support weblloc.

Instruccions de funcionament

Operating your AstroMaster 76EQ telescope involves aiming, focusing, and tracking celestial or terrestrial objects.

1. Aligning the StarPointer Finderscope

The StarPointer red dot finderscope must be aligned with the main telescope tube. This is best done during daylight hours:

1. Point the main telescope at a distant, easily identifiable object (e.g., a tree top or street sign) using the main telescope's focuser and a low-power eyepiece (20mm). Center the object in the eyepiece.
2. Turn on the StarPointer finderscope. Look through the finderscope and use its adjustment knobs to move the red dot until it is centered on the same object that is in the main telescope's eyepiece.
3. Once aligned, the finderscope will accurately indicate where the main telescope is pointing.

2. Observing with the Telescope

• Choosing an Eyepiece: Start with the 20mm eyepiece for a wider field of view and easier object location. Once the object is found and centered, you can switch to the 10mm eyepiece for higher magnification. The 20mm eyepiece provides 35x magnification, while the 10mm eyepiece offers 70x magnification.
• Enfocament: Use the focuser knob to bring the image into sharp focus. Turn it slowly until the image is clear.
• Tracking Objects: For celestial objects, use the slow-motion control knobs on the German Equatorial mount to smoothly track objects as they appear to drift across the sky due to Earth's rotation. This allows for extended viewing without constant manual repositioning.
• Terrestre Viewing: The AstroMaster 76EQ can also be used for daytime terrestrial viewing. The 20mm eyepiece includes a built-in erect image corrector, ensuring images are viewed right-side up.

Manteniment

Proper maintenance ensures the longevity and optimal performance of your telescope.

• Òptiques de neteja: Dust and moisture on the optical surfaces can degrade image quality. Use a soft, lint-free cloth specifically designed for optics. For stubborn spots, a specialized optical cleaning fluid can be used sparingly. Avoid touching the optical surfaces with your fingers.
• Neteja general: Wipe down the telescope tube and mount with a soft, damp drap. Eviteu productes de neteja o dissolvents abrasius.
• Emmagatzematge: When not in use, store the telescope in a dry, dust-free environment. Use the lens caps to protect the optical surfaces.
• Parts mòbils: The mount's moving parts are factory-lubricated. Do not attempt to disassemble or lubricate them unless specifically instructed by Celestron support.

Resolució de problemes

If you encounter issues with your telescope, refer to the common problems and solutions below:

If problems persist, contact Celestron customer support for assistance.

Especificacions

Garantia i Suport

Celestron provides a two-year warranty for the AstroMaster 76EQ Newtonian Reflector Telescope, covering defects in materials and workmanship.

For technical assistance, troubleshooting, or warranty claims, please contact Celestron's customer support team. Unlimited access to technical support from US-based experts is available.

For more information, visit the official Celestron weblloc web o consulteu les dades de contacte que figuren a l'embalatge del producte.