Celestron NexStar 5SE Computerized Telescope Instruction Manual

Introduction

The Celestron NexStar 5SE is a powerful, feature-rich telescope designed for observing celestial objects. It combines advanced Schmidt-Cassegrain optics with a fully automated GoTo mount, making it suitable for both beginners and experienced users. This manual provides essential information for setting up, operating, and maintaining your telescope to ensure optimal performance and enjoyment of the night sky.

Image: The Celestron NexStar 5SE Computerized Telescope, featuring its distinctive orange optical tube, black computerized mount, and included accessories like the 25mm Plössl eyepiece and StarPointer finderscope.

What's in the Box

Upon unpacking, ensure all the following components are present:

• Optical tube
• Single Fork Arm Mount and Tripod
• Accessory Tray
• Star Pointer Finderscope
• Built-In Wedge
• NexStar+ Hand Control
• 25mm eyepiece
• Star Diagonal

Setup

Setting up your NexStar 5SE is a straightforward process that requires no tools. Follow these steps to prepare your telescope for observation.

1. Tripod and Mount Assembly

The tripod and single fork arm mount come pre-assembled. Extend the tripod legs to a stable height and secure them. Attach the accessory tray to the center spreader for convenient storage of eyepieces and other small items.

Image: Components of the Celestron NexStar 5SE, including the optical tube, mount, and tripod, illustrating its compact and travel-ready size when disassembled.

2. Attaching the Optical Tube

Carefully attach the optical tube to the single fork arm mount. Ensure it is securely fastened to prevent movement during observation. The telescope features a built-in wedge, which can be used for polar alignment, especially beneficial for astrophotography.

3. Installing Eyepiece and Star Diagonal

Insert the Star Diagonal into the visual back of the optical tube. Then, insert the 25mm eyepiece into the Star Diagonal. This eyepiece provides 50x magnification, suitable for initial observations.

Image: A 25mm Plössl eyepiece shown against a backdrop of the Moon, indicating its 50x magnification capability for detailed lunar views.

4. Powering the Telescope

The NexStar 5SE requires 8 AA batteries (not included) or a 12V AC adapter (not included), or any of Celestron’s PowerTank external power sources. Install the batteries into the internal battery compartment or connect an external power source. The internal battery compartment helps prevent cord wrap during use.

5. Attaching the StarPointer Finderscope

Attach the StarPointer finderscope to the optical tube. This will assist in initial alignment and accurately locating objects.

Operating the Telescope

The NexStar 5SE features a fully automated GoTo system and SkyAlign technology for effortless celestial navigation.

1. Initial Power On and Hand Control

Turn on the telescope using the power switch. The NexStar+ hand control will illuminate and display prompts. This hand control features a double-line, 16-character liquid crystal display with backlit LED buttons for easy operation.

Image: A hand operating the NexStar+ Hand Control, which features a digital display and an array of buttons for navigating the telescope's computerized functions.

2. SkyAlign Technology

SkyAlign is Celestron's revolutionary alignment technology that simplifies the setup process. To align the telescope:

1. Center any three bright stars or planets in the eyepiece. You do not need to know their names.
2. The system will automatically calculate your position and align the telescope in minutes.

Image: A graphic illustrating Celestron's SkyAlign technology, showing three stars forming a triangle with the text "Easy as 1-2-3! No Astronomy Knowledge Required".

3. GoTo Functionality

Once aligned, use the NexStar+ hand control to select from a database of over 40,000 celestial objects. The computerized mount will then automatically locate and track your chosen target with precision, eliminating the need for star charts or manual tracking.

Image: The NexStar+ Hand Control displaying "Solar System Saturn" on its screen, next to an image of Saturn, demonstrating its object-finding capability.

4. Astrophotography Features

The built-in wedge allows for polar alignment, which is crucial for longer exposures and more accurate tracking during astrophotography. The telescope also includes a camera control feature and shutter release cable, enabling you to remotely take a series of timed exposures using your digital SLR camera.

Maintenance

Proper maintenance ensures the longevity and performance of your telescope.

• Cleaning Optics: Use only specialized optical cleaning solutions and cloths to clean lenses and mirrors. Avoid touching optical surfaces with bare hands.
• Battery Care: If using AA batteries, ensure they are fresh for optimal performance. Remove batteries if the telescope will not be used for an extended period to prevent leakage. Consider using a rechargeable Celestron Power Tank for longer observation sessions.
• Storage: Store the telescope in a dry, dust-free environment. Use dust caps for the optical tube and eyepieces when not in use.

Troubleshooting

If you encounter issues with your telescope, refer to the following common solutions:

• Alignment Issues: Ensure the telescope is level and pointing generally north before starting SkyAlign. Verify that the correct time, date, and location settings are entered into the hand control.
• Power Problems: Check battery levels or external power connections. Ensure the power switch is fully engaged.
• Motor Response: If motors are unresponsive, check all cable connections to the hand control and mount.
• Unclear Views: Ensure eyepieces are clean and properly seated. Adjust the focus knob slowly for a sharp image. Allow the telescope to acclimate to the ambient temperature to reduce thermal currents affecting image quality.

For further assistance, Celestron offers US-based technical support. You can also find product updates and additional resources online.

Specifications

Official Product Videos

Warranty and Support

The Celestron NexStar 5SE is backed by Celestron’s 2-Year Warranty. Customers also receive unlimited access to technical support from Celestron's US-based experts. For warranty claims or technical assistance, please refer to the contact information provided in your product packaging or visit the official Celestron website.