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Orion StarSeeker IV 150mm GoTo Mak-Cass Telescopes
$949.99 - $1,299.99
Accepted Payment
  • This big, 5.9" diameter GoTo Mak-Cass boasts a super-long 1800mm focal length and f/12 focal ratio to provide exceptional, high-resolution views of the Moon, planets, and deep-sky objects
  • Available in three different options: 1) without hand controller, for wireless control using your smartphone, 2) with pushbutton hand controller, or 3) value-packed kit with hand controller and additional accessories
  • The mount is now Wi-Fi enabled to allow wireless control from any iOS or Android smartphone or tablet using the FREE SynScan Pro app
  • Select any of thousands of objects in the StarSeeker IV's database and the telescope will automatically locate and track them so you can relax and enjoy the view
  • All options come with 23mm (78x) and 10mm (180x) wide field 60-degree 1.25" eyepieces, 90-degree diagonal, 2" visual-back, EZ Finder II sight, DeepMap 600, and MoonMap 260. Value-packed Kit includes even more!

Our biggest Maksutov-Cassegrain StarSeeker IV GoTo telescope combines motorized object-location technology with high-power optical performance at a great 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, yet large-aperture Maksutov-Cassegrain optical tube with an extra-long 1800mm focal length and f/12 focal ratio, the StarSeeker IV 150mm Mak-Cass collects a ton of light with its big 5.9" objective lens for bright views. Thanks to its combination of substantial aperture and long focal length, this telescope yields super-sharp resolution at high magnifications, making it an ideal instrument for high-power views of objects in the night sky. This 150mm GoTo Mak-Cass features a 2" visual back so you can use optional 2" diagonals and eyepieces if desired. A handy 1.25" step-down adapter is included for the 2" visual back to allow easy installation of the included 1.25" accessories.

The Orion StarSeeker IV 150mm GoTo Mak-Cass Telescope is now offered in three different options:

Option 1: Orion StarSeeker IV 150mm GoTo Mak-Cass without Controller
Without the SynScan Hand Controller. With this option you control your telescope wirelessly from your smartphone or tablet using the FREE SynScan Pro app. The SynScan Pro app is available for iOS and Android devices.

Orion StarSeeker IV 150mm GoTo Mak-Cass TelescopePlus Orion DeepMap 600 Folding Star Chart PlusOrion MoonMap 260

Option 2: Orion StarSeeker IV 150mm GoTo Mak-Cass with Controller
Includes the SynScan Hand Controller, which has come standard with this telescope for years. It?s backlit two-line LCD display and intuitive menus help you locate celestial objects in seconds.

Orion StarSeeker IV 150mm GoTo Mak-Cass TelescopePlus Orion SynScan V5 GoTo Hand ControllerPlusOrion DeepMap 600 Folding Star Chart PlusOrion MoonMap 260

Option 3: Orion StarSeeker IV 150mm GoTo Mak-Cass with Accessory Kit
Value-Added Kit includes everything in Option 2 plus additional accessories to enhance your experience under the stars.

Orion StarSeeker IV 150mm GoTo Mak-Cass TelescopePlus Orion SynScan V5 GoTo Hand ControllerPlusOrion DeepMap 600 Folding Star Chart PlusOrion MoonMap 260Plus1.25-inch Orion 13% Transmission Moon FilterPlusAC-to-DC Power Adapter

The Orion StarSeeker IV mount is now Wi-Fi enabled, so no matter which configuration you choose, you can control it wirelessly from you smartphone or tablet if you choose to, via the free SynScan Pro app. And both the app and the dedicated SynScan hand controller boast a database of over 10,000 deep-sky objects, so you will never run out of fascinating celestial gems to observe and study! Once you select and locate an object from one of the intuitive object menus, the StarSeeker IV GoTo mount's dual servo motors will automatically find the object and track its motion in the sky to keep it in your instrument's field of view. Even a novice stargazer will quickly learn how to explore the heavens with this high-tech telescope in just a couple of sessions. One really cool feature: the "Tour" mode identifies the best objects visible at the time you're observing and will lead you right to them!

The Orion StarSeeker IV 150mm GoTo Maksutov-Cassegrain setup includes an array of terrific accessories as standard equipment: 23mm (78x) and 10mm (180x) wide-field 60-degree eyepieces, EZ Finder II reflex sight, 1.25" mirror star diagonal, Orion MoonMap 260, and Orion DeepMap 600 star chart. The Value-Added Kit (Option 3) builds on that excellent accessory set by adding a Moon Filter, which cuts lunar glare for more comfortable viewing of its cratered surface, and an AC-to-DC adapter for powering the mount if you have access to a 110-volt wall outlet.