Astromaster 90eq

Discover our Solar System with the Celestron AstroMaster 90EQ! You'll be ready to observe in minutes thanks to the quick and easy no-tool setup. The 90EQ provides bright, clear images of the Moon, planets, star clusters, and more for great night-time viewing.

The AstroMaster mount comes with two slow motion control knobs that allow you to make fine pointing adjustments to the telescope in both Right Ascension and Declination axes, also referred to as RA and DEC.

Accessories include a 20mm and 10mm eyepiece, erect image diagonal, and a finderscope. The two eyepieces offer different magnifications for low and high-powered views.

Optical Design: Refractor

Aperture 90mm: (3.54)

Focal Length: 1000mm (39.37)

Focal Ratio: f/11

Focal Length of Eyepiece 1: 20mm (.78)

Magnification of Eyepiece 1: 50x

Focal Length of Eyepiece 2: 10mm (.4)

Magnification of Eyepiece 2: 100x

Finderscope: Built-on StarPointer

Star Diagonal: Erect Image Diagonal - 1.25

Highest Useful Magnification: 213x

Lowest Useful Magnification: 13x

Limiting Stellar Magnitude: 12.3

Resolution (Rayleigh): 1.55 arc seconds

Resolution (Dawes): 1.29 arc seconds

Light Gathering Power (Compared to human eye): 165x

Optical Coatings: Multi Coated

Optical Tube Length: 914mm (36)

Mount Type: CG-3 Equatorial

Height adjustment range (includes mount and tripod): 812.8mm - 1295.4mm (32 - 51)

Tripod Leg Diameter: 31.75mm (1.25) steel

Accessory Tray: Yes

Tripod Weight: 7.6 lbs (3447.3 g)

Slew Speeds: Manual

Dovetail Compatibility: CG-3 saddle plate

Software: Starry Night Basic Edition | SkyPortal App Included Items: Optical tube | Tripod and mount (preassembled) | 20mm eyepiece | 10mm eyepiece | Red-dot finderscope | Manual