Celestron AstroMaster 90AZ Refractor Telescope
- 90 mm objective, 1000 mm focal length
- Manual alt-azimuth mount, tripod preassembled
- 20mm and 10mm eyepieces, red-dot finderscope
- 5.58 kilograms, 34 x 30 x 52 inch footprint
- Two-year limited warranty
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A beginner-oriented Celestron telescope with two eyepieces and a finder included, moved entirely by hand. It has no motor or tracking, so every adjustment is yours.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B000MLL6QOModel: 21063Category: Telescopes
Overview
Celestron supplies this AstroMaster telescope on a manual alt-azimuth mount, with the tripod preassembled and a red-dot finderscope for aiming. Two eyepieces cover low and high power, and the optics are listed as fully coated.
The reason to consider it is a short setup: the listing promises a quick, no-tool start with the tripod already assembled and the finder ready to align. The limitation is the manual mount, which means nudging the tube by hand to follow a target and no computer help finding objects.
Who it's for
An adult beginner with a backyard and a few clear evenings gets the most from a scope with this simple mount. Imaging hobbyists and observers who want automatic tracking will outgrow it quickly.
Pros and cons
- Tripod arrives preassembled
- Red-dot finderscope for aiming
- Two eyepieces included
- Fully coated optics
- Manual mount, no tracking
- Bulky assembled footprint
- Compatible devices not obtainable
Performance notes
Aperture sets how much light the scope collects, and focal length with each eyepiece sets the power you see. The hand-moved base travels up-down and left-right only, so following a planet means small corrections as it drifts. The finder gets the tube close to a target before you look through the eyepiece.
Specifications
| Brand | Celestron |
|---|---|
| Model | 21063 |
| Dimensions & fit | |
| Objective Lens Diameter | 90 mm |
| Focal Length Description | 1000 mm |
| Opticaltube Length | 770 mm |
| Weight | 5.58 kilograms |
| Exit Pupil Diameter | 1.8 Millimeters |
| Item Dimensions D X W X H | 34"D x 30"W x 52"H |
| Capacity & performance | |
| Age Range Description | Adults |
| Power & efficiency | |
| Power Source | Manual; 1 CR2032 battery for finder |
| Construction & materials | |
| Coating | Fully coated |
| Compatibility & installation | |
| Mount | Manual alt-azimuth |
| Compatible Devices | Not Obtainable (NO) |
| Included components | |
| Unit Count | 1.0 Count |
| Warranty & support | |
| Warranty Description | Two-year limited |
| Other details | |
| Focus Type | Manual focus |
| Field Of View | 1.8 degrees |
| Finderscope | StarPointer red-dot |
| Eye Piece Lens Description | 20mm and 10mm |
| Additional Features | Observe in no time with a quick and easy, no-tool setup |
| Item Type Name | Celestron AstroMaster 90AZ Telescope |
| Zoom Ratio | 5:1 |
Closest rivals on specs
SVBONY SV503 70mm ED Refractor Telescope- Focal Length Description 39.4 vs 18.7 inches (+111%)
- Field Of View 2 vs 1 degrees (+100%)
- Opticaltube Length 30.3 vs 18.7 inches (+62%)
SVBONY SV555 54mm Petzval APO Refractor Telescope- Opticaltube Length 30.3 vs 9.6 inches (+216%)
- Objective Lens Diameter 90 vs 54 mm (+67%)
- Item Weight 12.3 vs 8.38 pounds (+47%)
SVBONY MK127 Maksutov Cassegrain Telescope- Focal Length Description 39.4 vs 58.9 inches (-33%)
- Field Of View 2 vs 1 degrees (+100%)
- Opticaltube Length 30.3 vs 12.9 inches (+135%)
Frequently asked questions
How do I care for the Celestron AstroMaster 90AZ between sessions?
The listing gives no cleaning instructions. Cover the optics when not in use and check the CR2032 finderscope battery, which the listing says is included.
Does the Celestron 21063 need electricity?
No. The listing shows manual power and a manual mount. Only the red-dot finderscope uses a CR2032 battery, and it is included.
Can the Celestron 21063 track the sky automatically?
No. It has a manual alt-azimuth mount and the listing names no motor or tracking.