Orion PRO 120 EQ instruction manual Table of Contents, Unpacking, Parts List, Assembly

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Congratulations on your purchase of an Orion telescope. Your new SkyView Pro 120 EQ is designed for high-resolution viewing and astrophotography of astronomical objects. With its precision optics and sturdy equatorial mount, you’ll be able to enjoy hundreds of fascinating celestial denizens.

These instructions will help you set up, properly use, and care for your telescope. Please read them over thoroughly before getting started.

Table of Contents

1. Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2. Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3. Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4. Balancing the Telescope. . . . . . . . . . . . . . . . . 5

5. Using Your Telescope . . . . . . . . . . . . . . . . . . . 6

6. Setting Up and Using the Equatorial Mount . . 7

7. Astronomical Observing . . . . . . . . . . . . . . . . 12

8. Astrophotography . . . . . . . . . . . . . . . . . . . . . 15

9. Collimating (Aligning the Optics) . . . . . . . . . 16

10. Care and Maintenance . . . . . . . . . . . . . . . . 16

11. Specifications . . . . . . . . . . . . . . . . . . . . . . . 17

1. Unpacking

The SkyView Pro 120 EQ will arrive in one box. Be careful unpacking the box. We recommend keeping the box and all original packaging. In the event that the telescope needs to be shipped to another location, or returned to Orion for warranty repair, having the proper box and packaging will help ensure that your telescope will survive the journey intact.

Make sure all the parts in the Parts List are present. Be sure to check each box carefully, as some parts are small. If anything appears to be missing or broken, immediate- ly call Orion Customer Support (800-676-1343) or email support@telescope.com for assistance.

Warning: Never look directly at the Sun through your telescope or its finder scope—even for an instant—without a professionally made solar filter that completely covers the front of the instrument, or permanent eye damage could result. Young children should use this telescope only with adult supervision.

2. Parts List

1Optical tube assembly

1Tripod

1Equatorial mount

1Tripod support tray

1Counterweight shaft

1Large counterweight

1Small counterweight

2Slow-motion control knobs

1 R.A. axis rear cover

1 Latitude adjustment L-bolt

2Tube rings with mounting screws

1 Tube ring mounting plate

1 25mm Sirius Plössl eyepiece

1 10mm Sirius Plössl eyepiece

1 Star diagonal

1 Finder scope

1 Finder scope bracket with O-ring

1 Dust cover

1 Collimation tool

3.Assembly

Assembling the telescope for the first time should take about 30 minutes. No tools are needed other than the ones provided. All screws should be tightened securely, but be careful not to over-tighten or the threads may strip. Refer to Figure 1 during the assembly process.

During assembly (and anytime, for that matter), do not touch the surfaces of the lenses of the telescope, finder scope or eyepieces with your fingers. The optical surfaces have delicate coatings on them that can easily be damaged if touched inap- propriately. Never remove any lens assembly from its housing for any reason, or the product warranty and return policy will be voided.

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Contents Orion SkyView Pro 120 EQ Finder scope Unpacking Table of ContentsParts List AssemblyAzimuth Installing the Finder Scope Balancing the TelescopeInserting the Diagonal and Eyepiece Viewing with Eyeglasses Using Your TelescopeFocusing the Telescope Focusing the finder scope1000mm÷10mm=100x Setting Up and Using the Equatorial MountMagnification & Eyepieces 1000mm÷25mm=Polar Alignment DeclinationPolar Alignment Using an Optional Polar Axis Finder Scope Using the Polar Axis Finder ScopeAlignment of the Polar Axis Finder Scope Understanding the Setting Circles Tracking Celestial ObjectsOptional Motor Drives for Automatic Tracking H 35.4m Dec. -5 Calibrating the Declination Setting CircleCalibrating the Right Ascension Setting Circle Finding Objects With the Setting CirclesObserving Tips Astronomical ObservingWhat to Expect Eyepiece SelectionDeep-Sky Objects How to Find Deep-sky Objects StarhoppingPiggyback Photography AstrophotographyMoon Photography Planetary PhotographyCollimating Aligning the Optics Care and MaintenanceCleaning Lenses SpecificationsPage Page One-Year Limited Warranty

PRO 120 EQ specifications

The Orion PRO 120 EQ is a remarkable telescope designed for both amateur astronomers and seasoned enthusiasts. This telescope offers a perfect balance of performance, features, and affordability, making it an excellent choice for those looking to explore the wonders of the night sky.

One of the standout features of the Orion PRO 120 EQ is its 120mm aperture. This generous opening allows for an impressive amount of light to enter the telescope, enabling users to observe faint celestial objects with clarity. Whether observing craters on the Moon or distant galaxies, the optics deliver bright and sharp images. The focal length of 1000mm gives a versatile range for planetary and deep-sky observations, ensuring that users can explore various astronomical phenomena.

The telescope comes equipped with a sturdy equatorial mount, providing smooth and accurate tracking of celestial objects. This mount is essential for long exposure astrophotography as it allows for precise movements to follow objects as they traverse the night sky. The mount also features slow-motion controls, making it easy for users to make fine adjustments and focus on their targets.

The Orion PRO 120 EQ is designed with user-friendliness in mind. It includes a 1.25-inch focus mechanism compatible with various eyepieces and accessories, allowing for customization to enhance the observing experience. The telescope's optical design features fully multi-coated optics, which help to increase light transmission and reduce glare, ensuring vibrant images with high contrast.

Durability is another key characteristic of the Orion PRO 120 EQ. Its robust construction ensures stability during observations, and the compact size makes it relatively easy to transport, whether setting up in the backyard or heading to a dark-sky site. The telescope comes with a set of sturdy accessories, including a finderscope and a set of quality eyepieces, further enhancing its usability right out of the box.

Overall, the Orion PRO 120 EQ is a versatile telescope that excels in both beginner and advanced applications. Its combination of a large aperture, quality optics, and reliable mount makes it a fantastic choice for anyone looking to delve into the vast universe, making every stargazing session a memorable experience.
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