Sky-Watcher 90/900 Land & Sea Refractor Telescope

Sky-Watcher 90/900 Land & Sea Refractor Telescope
(Sky-Watcher SW909AZ3)

We Think You Should Know

• 900 Focal Length
• 90mm Aperture
• Multi-coated achromatic objective lens
• Aluminium tube
• Dew cap/Sunshade
• Sturdy but lightweight, easy to transport

Overview

The Sky-Watcher 90/900 Refractor telescope is a two-element, air-spaced, fully multi-coated objective, achromatic refractor. It allows you to view detailed vistas of star fields, clusters, nebulae, planets and other celestial bodies. It makes a fine terrestrial telescope when mounted on an alt-azimuth mount. With 65% more light gathering power than 70mm telescopes.

Features

Premium Astronomy and Terrestrial Observation
Sky-Watcher 90/900 refractor telescope is a well-proven performer in value for views of comets, star fields, star clusters, planets, bright galaxies & nebulae, the Moon and the Sun (with proper safety filtering!). Supplied with the sturdy and easy-to-use AZ3 alt-azimuth mount, which provides excellent stability and precise control, via its slow motion cables, on both the horizontal (azimuth) and vertical (altitude) axes, this Sky-Watcher 90/900 AZ3 refractor is also used as a daytime terrestrial telescope.

Model	SW909AZ3
Optical design	Multicoated Achromatic Refractor
Aperture	90mm
Focal Length	900mm
Focal Ratio	f/10
Resolving Power	1.33'
Stellar Limit Magnitude	12.1
Highest Practical Magnification	180x
Light gathering power (compared to the unaided eye)	165
Focuser Diameter	1.25'
Recommended Usage	Viewing Moon and Planets Nature viewing