Celestron AstroMaster 90 AZ Telescope

An achromatic refractor with an objective diameter of 90 mm and a focal length of 1000 mm.

This lenticular telescope collects 162x more light than the human eye at night. It is mounted on an azimuth mount, and the whole thing is light enough to allow easy movement to other locations, such as away from artificial light sources that have an adverse effect on night sky observations. The image seen is bright and high-contrast.

Included with the telescope
Finder: StarPointer
Mount: azimuthal
Eyepiece 1: 20 mm 1.25", 50° (50x)
Eyepiece 2: 10 mm 1.25", 50° (100x)
Steel tripod, extendable

Technical specifications
Telescope series: AstroMaster
Telescope optical system: refractor
Eyepiece field of view: 1°
Aperture: 90 mm
Objective focal length: 1000 mm
Focal length: 11,1
Focal length of eyepiece 1: 20 mm
Focal length of eyepiece 2: 10 mm
Finder: red dot (StarPointer)
Mount type: azimuthal
Tripod: steel 1.25
Highest usable magnification: 180
Smallest useful magnification: 13
Stellar range: 12.1 mag
Resolution (Rayleigh): 1.55 angular seconds
Resolution (Dawes): 1.29 angular seconds
Collective capacity (compared to the unaided eye): 165
Tube length: 914 mm
Telescope control: manual
Magnification with eyepiece 1: 50
Magnification with eyepiece 2: 100
Angle cap: 90° / 1.25
Angle cap thread: 1,25"
Eyepiece focuser: rack and pinion
Extractor diameter: 1,25
Manufacturer: Celestron, USA