Orion StarSeeker IV 150mm GoTo Mak-Cass Telescope

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Part Number: 13166
$999.99
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Best for viewing Brighter deep sky
Best for imaging Lunar & planetary
User level Intermediate
Optical design Maksutov-Cassegrain
Optical diameter 150mm
Focal length 1800mm
Focal ratio f/12.0
Eyepieces 3-Element 23.0mm,10.0mm (1.25")
Magnification with included eyepieces 78x, 180x
Resolving power 0.78arc*sec
Lowest useful magnification 51x
Highest useful magnification 300x
Highest theoretical magnification 300x
Limiting stellar magnitude 13.6
Optical quality Diffraction limited
Finder scope EZ Finder II
Focuser Internal
Diagonal degrees 1.25" 90° Mirror Star
Secondary mirror obstruction 47mm
Secondary mirror obstruction by diameter 31%
Secondary mirror obstruction by area 10%
Mount type Altazimuth
Astro-imaging capability Lunar & planetary
Computerized compatibility Go-To included
Alignment procedure Two-Star Alignment
Number of objects in database 42,900
Tracking rates Sidereal, Solar and Lunar
Motor speeds Ten different slewing speeds from 0.5x sidereal to over 600x sidereal
Power requirement 8-AA batteries or 12-volt DC
Tube material Aluminum
Tripod material Steel
Tripod leg diameter 1.25 in.
Length of optical tube 17.7 in.
Weight, optical tube 12.1 lbs.
Weight, fully assembled 26.1 lbs.
Additional included accessories 2" visual back accepts 2" or 1.25" accessories, Front dust cover, Dovetail mounting rail
Other features Dual encoders on each axis allow manual GoTo, INternet upgradeable hand controller, Internal battery compartment
Warranty One year
Item 13166

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