The Sky-Watcher Newton 200mm f/4 telescope is an optical instrument designed for amateur astronomy, capable of providing detailed observations of the night sky. Here are the key points to remember:

Features

• Optical design: Newton
• Parabolic primary mirror made of Pyrex
• Focal length: 800 mm
• Focal ratio: f/4
• Resolution power: 0.6"
• Limit magnitude: 13.4

Design

• Metal tube with Vixen-style dovetail and two mounting rings
• Crayford Linear Power 50.8/31.75 mm Sky-Watcher focuser with microfocuser (dual speed 1:10)
• Piggyback mount for camera on the top of one of the mounting rings

Overview

The telescope is equipped with a parabolic primary mirror made of Pyrex, which offers high optical quality. The f/4 focal ratio allows for great brightness and a wide field of view. The robust metal construction and the presence of two mounting rings ensure the stability of the tube.

Focuser

The Crayford Linear Power focuser is equipped with a microfocuser (dual speed 1:10), allowing for fine and precise focusing. The 31.75 mm adapter is included to use eyepieces of the same format.

Finderscope

A 9x50 straight finderscope is provided as standard to facilitate the locating of celestial objects.

The Sky-Watcher Newton 200mm f/4 telescope is a powerful and robust optical instrument, designed for amateur astronomers who wish to observe the night sky with precision and detail.