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Celestron AstroMaster 90 AZ Telescope
- description
- technical data
- Reviews
- Goes well with
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
MILITARY is a premium dealer of Celestron.
Celestron is an American company specializing in the production of optical equipment, operating continuously since 1960. From the beginning of its activity, it has developed innovative solutions supporting both amateur astronomers and professional users. It gained popularity thanks to Schmidt-Cassegrain telescopes, which set new standards in astronomical observation. Breakthrough technologies developed by Celestron include, among others, the automatic StarSense AutoAlign alignment system and the NexStar controller, which make sky observation much easier. Advanced telescopes from the EdgeHD series are also used in scientific observatories, and Fastar technology allows exceptionally fast sky imaging while maintaining high detail quality. The brand has earned recognition worldwide and is regarded as one of the leading telescope manufacturers in the mid-range segment.
| Objective lens diameter (mm) | 90 |
|---|---|
| Telescope type | Refractor |
| Focal length | 1000 mm |
| Lens speed (f/x) | f/11,1 |
| Maximum magnification | 180x |
| Telescope mount | AZ Azimuth |
| Finderscope in the set | Yes, RedDot |
| Limiting magnitude (magnitudo) | 12,1 mag |
| Replacement glasses in the set | Yes |
| Tripod material | Aluminium |
| Tube length | 914 mm |
| EAN | 050234210638 |
| Manufacturer code | 21063 |
| Brand | Celestron |
| EAN |
