ThaiExcite
88/41 Kanlapapruek Road, Bangkae, Bangkae, 10160, Bangkok, ประเทศไทย
ติดต่อสอบถาม: 081-239-3299
อีเมล์: info@thaiexcite.com
URL: http://www.thaiexcite.com/Celestron-AstroMaster70-AZ-21061-Refractor-Telescope-with-tripod.html
If you’re looking for a dual-purpose telescope appropriate for both terrestrial and celestial viewing, then the AstroMaster Series is for you. Each AstroMaster model is capable of giving correct views of land and sky. The AstroMaster Series produce bright, clear images of the Moon and planets. It is easy to see the moons of Jupiter and the rings of Saturn with every one of these fine instruments.
Objective lens:
StarPointer finderscope:
Image-Erect Diagonal and Focusor:
Quick-release dovetail mounting system:
Accessory Tray:
Eyepieces:
Software and User Manuals:
SPECIFICATIONS:
Optical Design | Refractor |
Aperture (mm) | 70 mm (2.76 in) |
Focal Length (mm) | 900 mm (35 in) |
Focal Ratio | 13 |
Eyepiece 1 (mm) | 20 mm (0.79 in) |
Magnification 1 | 45 x |
Eyepiece 2 (mm) | 10 mm (0.39 in) |
Magnification 2 | 90 x |
Finderscope | Built-in StarPointer |
Star Diagonal | Erect Image Diagonal -1.25" |
Mount Type | Altazimuth |
Tripod | 1.25" steel tube legs |
Weight (lbs) | 3.3 lbs (1.5 kg) |
Highest Useful Magnification | 165 x |
Lowest Useful Magnification | 10 x |
Limiting Stellar Magnitude | 11.7 |
Resolution (Rayleigh) | 1.99 arc seconds |
Resolution (Dawes) | 1.66 arc seconds |
Light Gathering Power (Compared to human eye) | 100 x |
Apparent Field of View | 1.1 degrees |
Linear Field of View (@1000 yds) | 58 ft (18 m) |
Optical Coatings | Fully Coated |
Optical Tube Length | 36 in (914 mm) |
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