Orion StarSeeker IV 150mm Mak-Cass GoTo Telescope

• Our largest aperture StarSeeker IV grabs a lot of light for big, bright views of everything from the Moon and planets to distant nebulas, galaxies and star clusters
• Huge GoTo database of over 42,000 objects, and handy built-in Tour mode lets you enjoy great views on any clear night
• Once aligned, dual optical encoders on both axes of motion allow manual aiming of the telescope without losing GoTo alignment
• After an object is selected, the StarSeeker IV 150mm locates and tracks it automatically so you can relax and enjoy the view
• Includes GoTo hand controller, 23mm (32.6x) and 10mm (75x) wide-field 60-degree eyepieces, EZ Finder II sight, and more

Our StarSeeker IV 150mm GoTo Reflector 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 large reflector optical tube with a 750mm focal length and moderate f/5.0 focal ratio, the versatile StarSeeker IV 150mm Reflector collects a ton of light with its 6" aperture, parabolic reflecting optics for very bright, wide-field views. The entire telescope setup weighs 22.3 lbs for easy transport, whether you're heading down the road or just out to the backyard.

Following a simple two-star alignment process, the Orion StarSeeker IV 150mm 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 150mm GoTo Reflector locates a target for you to explore, the single-arm altazimuth 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.

Warranty

Limited Warranty against defects in materials or workmanship for one year from date of purchase.

• Best for viewing

  Lunar & bright deep sky
• Best for imaging

  Lunar & planetary
• User level

  Beginner
• Optical design

  Reflector
• Optical diameter

  150mm
• Focal length

  750mm
• Focal ratio

  f/5.0
• Optics type

  Parabolic
• Glass material

  Low thermal expansion glass
• Eyepieces

  3-Element 23.0mm,10.0mm (1.25")
• Magnification with included eyepieces

  32x, 75x
• Resolving power

  0.77arc*sec
• Lowest useful magnification

  17x
• Highest useful magnification

  177x
• Highest theoretical magnification

  300x
• Limiting stellar magnitude

  13.5
• Optical quality

  Diffraction limited
• Finder scope

  EZ Finder II
• Focuser

  1.25" Rack-and-pinion
• Mirror coatings/over-coatings

  Enhanced Aluminum & Silicon Dioxide
• Mount type

  Altazimuth
• Astro-imaging capability

  Lunar & planetary
• Computerized compatibility

  Go-To system
• 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
• Motor type

  DC Servo motors with encoders
• Power requirement

  8-AA batteries or 12-volt DC
• Polar-axis scope

  Sold separately
• Available ports

  RS-232
• Tube material

  Steel
• Tripod material

  Steel
• Tripod leg diameter

  1.25 in.
• Length of optical tube

  24.2 in.
• Weight, optical tube

  8.3 lbs.
• Weight, mount/tripod

  14.0 lbs.
• Weight, fully assembled

  22.3 lbs.
• Additional included accessories

  Cast-Metal accessory tray/Spread bracer, RS-232 cable, 12V DC power cable, Quick-Collimation cap
• Other features

  liquid filled compass, Manual movement while maintaining GoTo alignment, Battery & hand controller holder built into mount
• Warranty

  One year