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Celestron-astromaster-90eq.1087535
7.2 out of 10

Celestron AstroMaster 90EQ

Optical Design : Refractor Aperture : 90 mm (3.54 in) Focal Leng Read more

Great Deal: $225.00

Specifications

Feature
Value
Comment
Optical Design :
Refractor
Aperture :
90 mm (3.54 in)
Focal Length :
1000 mm (39.37 in)
Focal Ratio :
11.11
Eyepiece 1 :
20 mm (0.79 in)
Magnification 1 :
50 x
Eyepiece 2 :
10 mm (0.39 in)
Magnification 2 :
100 x
Mount :
CG-3 Equatorial
Optical Coatings :
Multi Coated
Finderscope :
Built-on StarPointer
Tube Attachment :
Dovetail Bar
Star Diagonal :
Erect Image Diagonal - 1.25"
Tripod :
1.25" steel tube legs
CD ROM :
The Sky L1
Highest Useful Magnification :
213 x
Limiting Stellar Magnitude :
12.3
Resolution (Rayleigh) :
1.55 arcsec
Resolution (Dawes) :
1.29 arcsec
Light Gathering Power :
165 x
Angular Field of View :
1 °
Linear Field of View (@1000 yds) :
53 ft (16.15 m)
Optical Tube Length :
36 in (914.4 mm)
Weight :
27 lbs (12.25 kg)
Release Date
First seen
19 February 2008