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Orion StarSeeker IV 127mm GoTo Maksutov Cassegrain Telescope

SKU : OR-13163

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  • Extended Backorder: 2-3 Months

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  • 5-Inch Diameter GoTo Mak-Cass Reflecting Telescope
  • Focal Length: 1540 mm
  • Focal Ratio: f/12.1 
  • High-Power views of the Moon, Bright Planets, and Brighter Deep-sky Objects
  • Huge GoTo Database of over 42,000 Objects
  • Once Aligned, Manual Aiming is allowed without losing GoTo Alignment
  • After an Object is Selected, it Locates and Tracks it Automatically


Product Details


    The easily portable Orion StarSeeker IV 127 mm (5-Inch) aperture GoTo Maksutov-Cassegrain Telescope presents a winning combination of motorized object-location technology and great optical performance at an unbelievably low price. This smart GoTo telescope will lead you and your family on a guided tour of the stars on any clear night.

    Featuring a compact Maksutov-Cassegrain optical tube with an extra-long 1540 mm focal length and f/12.1 focal ratio, the conveniently portable "Grab-and-GoTo" StarSeeker IV 102 mm Mak-Cass collects a lot of light with its 5-inch aperture objective lens for bright views, while its long focal length provides very sharp resolution at high magnifications. The entire telescope setup weighs only 22.2-pounds for easy transportability.

    Following a simple two-star alignment process, the Orion StarSeeker IV 127 mm telescope can guide you to interesting sights on any clear night with its GoTo database of over 42,000 objects. A handy, built-in "Tour" mode feature of the included GoTo hand controller makes it easy for anyone to explore the wonders of starry skies, no matter how familiar or unfamiliar you are with the night sky. Once the StarSeeker IV 102 mm GoTo Mak-Cass locates a target for you to explore, the single-arm Alt-Azimuth mount's internal motors will automatically track the object's apparent motion and keep it centered so you can enjoy the view as long as you wish.

    This fourth generation StarSeeker telescope features dual optical encoders on each axis of motion which allow you to move the telescope tube either manually by hand, or electronically by using the directional arrows on the GoTo hand controller. To save time, battery life, and reduce motor wear, you can manually point the telescope towards the general area of a target object, then engage the tube lock and use the hand controller to let the GoTo mount finish the fine-centering of the object electronically.


    This complete, object-locating GoTo telescope setup includes a thorough assortment of useful accessories:


     Two wide-field 1.25-inch eyepieces are included with the StarSeeker IV 102 mm GoTo Mak-Cass. The included 23 mm wide-field eyepiece provides 62x magnification in the 127 mm Maksutov-Cassegrain optical tube, and the 10 mm ocular yields a very high-magnification, 154x view through the telescope for close-up inspections of starry skies. Each included eyepiece has a wide, 60-degrees apparent field-of-view to show you more of the target object and its surroundings.
     Use the included 90-degree star diagonal to view the night sky comfortably. A diagonal "bends" the light path of a telescope so you can enjoy the view without having to contort yourself into awkward positions to peer into the eyepiece. The 90-degree star diagonal that comes with the StarSeeker IV 127 mm GoTo Mak-Cass places the eyepiece you're using in a comfortable position for nighttime stargazing of the skies above.
     The Orion EZ Finder II reflex sight makes it "EZ" to center alignment stars. Use the included EZ Finder II reflex sight to help center initial alignment stars when performing the two-star alignment required for accurate GoTo performance. This non-magnifying sighting device superimposes a tiny, LED-powered red dot, focused at infinity, on the sky. After a simple alignment procedure, the red dot shows exactly where your telescope is pointed.
     Let the computerized GoTo controller guide you on a tour. The StarSeeker IV 127mm GoTo Mak-Cass lets you explore the skies with push-button ease thanks to its GoTo hand controller. With a vast database of over 42,000 celestial objects including stars, double stars, galaxies, nebulas, star clusters, and more, the included computerized GoTo hand controller will become your tour guide to the skies. The built-in "Tour" mode will show you great sights on any clear night.


    The StarSeeker IV GoTo mount and its slanted, single-arm Alt-Azimuth design provides attached telescopes with 360-degrees of Azimuth motion and 90-degrees of Altitude motion for horizon-to-zenith pointing. A quick-release narrow dovetail saddle makes telescope attachment nice and easy. The StarSeeker IV 127 mm features an upgraded cylindrical leg stainless steel tripod that is much sturdier than previous models and adjusts in height for comfortable use. Tripod stability is further enhanced with the included dual-purpose spreader plate/accessory holder, which keeps the tripod rigid and provides a handy area for stowing idle eyepieces and accessories.

    Since the StarSeeker IV 127 mm Mak-Cass can locate and track celestial objects with its motorized GoTo system, you can use it along with a camera or smartphone to take impressive pictures of the night sky. Capture stunning snapshots of the Moon, planets and more by attaching a dedicated astrophotography camera, or a combination of an Orion SteadyPix accessory and your own point-and-shoot camera or smartphone to the StarSeeker IV 127 mm Mak-Cass to explore the rewarding hobby of astrophotography. (Cameras and SteadyPix accessories sold separately.)

    Each StarSeeker IV telescope is powered by 8 internally stored AA user supplied batteries. A 12V DC auto-lighter plug is included for use of optional 12V DC field batteries.


    Manufacturer's Warranty

    Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. 


    Manufacturer's Warning

    Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.


  • specifications

    Aperture127 mm (5")
    Camera/Eyepiece Connection1.25
    Dawes Limit0.91 arcseconds
    Focal Length1540 mm
    Focal Ratiof/12.1
    Highest Magnification254x
    Light Gathering Power329x
    Limiting Magnitude14.3
    Optical DesignMaksutov Cassegrain
    Secondary Obstruction39 mm
    Tube Length368.3mm
    Tube Weight8.6 lbs
    Warranty1 Year Warranty
  • included items


    • Orion StarSeeker IV 127 f/12.1 Maksutov-Cassegrain Telescope Optical Tube Assembly
    • StarSeeker IV GoTo Alt-Azimuth Mount
    • Tripod
    • Orion AZ/EQ Computerized GoTo Hand Controller (Synscan)
    • Orion EZ Finder II Reflex Sight
    • 23 mm Wide-Field 60-degree AFOV Eyepiece, (1.25-inch)
    • 10 mm Wide-Field 60-degree AFOV Eyepiece, (1.25-inch)
    • 1.25-inch Star Diagonal
    • Accessory Tray
    • PC Interface (Serial) Cable
    • 12V DC Power Cable (Auto Lighter Plug to 2.1/ 5.5 mm Plug)
    • Hand Controller Holder Bracket and Strap
    • Quick-Collimation Cap
    • Liquid-Filled Compass
    • Starry Night SE Astronomy Software Digital Download Insert


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