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National Geographic Refractor 70/900 Telescope

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National Geographic Refractor 70/900 Telescope Details

National Geographic Refractor 70/900 Telescope
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National Geographic Refractor 70/900 Telescope Specifications

ManufacturerNational Geographic
Telescopes seriesNational Geographic Refractors
Made in-
In production since-
Warranty5 years
SKU9071000
Optical design of telescope Refracting telescope
Lowest (useful) magnification. 49.6177x
Highest (useful) magnification. 371.5813x
Field of view - FOV... 0m/1000m
Apperent FOV (angular).
Optical tube size - diameter-
Optical tube length-
Optical tube weight-
Aperture. 14.1135mm
Focal length. 900mm
Focal ratio. 14.1624
Eyepiece 1 - Focal Length4 mm
Eyepiece 1 . magnification225 x
Eyepiece 2 - Focal Length12 mm
Eyepiece 2 . magnification75 x
Eyepiece 3 - Focal Length20 mm
Eyepiece 3 . magnification45 x
Light-gathering power. 110.644x
Limitting stellar magnitude. 13.2773
Rayleigh Resolution. 2.1814Arc seconds
Dawes Resolution. 1.8381Arc seconds
Image capturingNo
Photo adapterNo
Mount type of buildMulti-Purpose mount
Tripod compliantYes
Type of tripodAdjustable
Tripod materialAluminium
Min. height.0mm
Max. height.0mm
Software for Stellar Navigation-
GoTo Telescope Control No
GoTo Telecope Language-
Telescope GoTo control interfaces-
Telescope Alignment method -
Integrated GPSNo
Tracking No
Track rate -
Track mode -
Telescope Guiding -
Slow motion controller yes, both axes
Slew Speed -
Com. Port-
Remote Hand ControlNo
ColorBlack
Power Supply Unit-
Energy consumption.0W
Lens coatings Fully Multicoated
Type of FocuserNo
Eyepiece barrel size-
Eyepiece angle90°
Barlow diverging lens -
LevelNo
Total gear weight.0kg
Finder - Scope 6x25
Recommended forBeginners
Suitable for observingGalaxies, Moon, Planets, Terrestrial

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