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Levenhuk Ra 250N Dobson Telescope

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Levenhuk Ra 250N Dobson Telescope Details

Levenhuk Ra 250N Dobson Telescope
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Levenhuk Ra 250N Dobson Telescope Specifications

Telescopes seriesLevenhuk Ra
Made inChina
In production sinceNo
Warranty2 years
Optical design of telescope Newtonian reflector
Lowest (useful) magnification. 35.7x
Highest (useful) magnification. 500x
Field of view - FOV... 0m/1000m
Apperent FOV (angular).
Optical tube size - diameterNo
Optical tube lengthNo
Optical tube weightNo
Aperture. 250mm
Focal length. 1250mm
Focal ratio. 5
Eyepiece 1 - Focal Length9
Eyepiece 1 . magnification138
Eyepiece 2 - Focal Length30
Eyepiece 2 . magnification41
Eyepiece 3 - Focal LengthNo
Eyepiece 3 . magnificationNo
Light-gathering power. 1275.5x
Limitting stellar magnitude. 14.7
Rayleigh Resolution. 0.55Arc seconds
Dawes Resolution. 0.46Arc seconds
Secondary mirror size/diameter. 0mm
Secondary mirror obstruction (by diameter). 0%
Secondary mirror obstruction (by area). 0%
Image capturingNo
Photo adapterNo
Mount type of buildDobson
Tripod compliant-
Type of tripod-
Tripod material-
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 No
Slow motion controller -
Slew Speed Manual
Com. Port-
Remote Hand Control-
Power Supply UnitAA
Energy consumption.0W
Lens coatings Aluminum
Type of Focuser2" Rack-and-Pinion Focuser
Eyepiece barrel size1.25'' / 31.75 mm
Eyepiece angle90°
Barlow diverging lens No
Total gear weight.39.12kg
Finder - Scope -
Recommended forBeginners, Intermediate, Advanced
Suitable for observingGalaxies, Nebulae


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