Contents | Meade 12.5 specs

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Captions for Fig. 1

1.Focuser assembly

2.Eyepiece

3.Viewfinder bracket

4.Viewfinder

5.Optical tube assembly

6.Mirror cell

7.Side board

8.Ground plate

9.Base plate

10.Front board

11.Altitude bearing

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6", 8" 10", and 12.5 Starfinder

Dobsonian Telescopes

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Parts Listing and Assembly. . . . . . . . . . . . . . . . . . . . . . . . . 4 Assembling the Mount. . . . . . . . . . . . . . . . . . . . . . . . . 4 Optical Tube Assembly . . . . . . . . . . . . . . . . . . . . . . . . 5 Attaching the Focuser . . . . . . . . . . . . . . . . . . . . . 5 Attaching the Viewfinder . . . . . . . . . . . . . . . . . . . 5 Installing the Primary Mirror. . . . . . . . . . . . . . . . . 5

Balancing the Telescope. . . . . . . . . . . . . . . . . . . . . . . . . . . 6 The Viewfinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Aligning the Viewfinder . . . . . . . . . . . . . . . . . . . . . . . . 6 Using the Viewfinder. . . . . . . . . . . . . . . . . . . . . . . . . . 6 Collimation of the Optical System . . . . . . . . . . . . . . . . . . . . 6 Correct Collimation . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Spider Vane Adjustments . . . . . . . . . . . . . . . . . . . . . . 7 Secondary Mirror Adjustments. . . . . . . . . . . . . . . . . . . 7 Primary Mirror Adjustments. . . . . . . . . . . . . . . . . . . . . 7 Star Testing the Collimation. . . . . . . . . . . . . . . . . . . . . 8 Tips on Using a Dobsonian Telescope. . . . . . . . . . . . . . . . . 8 Magnification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Seeing Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Observing Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Care of Optics and Main Tube. . . . . . . . . . . . . . . . . . . . . . . 9 Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Meade Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . 10 Specifications and Features . . . . . . . . . . . . . . . . . . . . . . . 11

12.5 specifications

The Meade 12.5-inch telescope is a testament to cutting-edge optical technology, designed for both amateur astronomers and serious astrophotographers. Its robust build and impressive specifications make it a popular choice among stargazers looking to explore the finer details of celestial objects.

One of the main features of the Meade 12.5 is its large aperture of 12.5 inches, or 318 millimeters. This sizable opening allows for a significant amount of light to enter the telescope, resulting in bright and clear images of distant galaxies, nebulae, and clusters. The vast light-gathering capability is particularly advantageous when observing faint objects, providing enhanced detail not achievable with smaller apertures.

The Meade 12.5 utilizes advanced optics, often incorporating premium-grade glass elements. This ensures minimal optical aberrations, resulting in sharp, high-contrast images. Many models also feature a parabolic primary mirror, which optimizes focus across the entire field of view, making it ideal for high-resolution observations.

In terms of technology, many Meade 12.5 telescopes come equipped with computerized mount systems. These mounts utilize GoTo technology, enabling users to easily locate and track celestial objects. With a database containing thousands of celestial bodies, users can simply input the desired object, and the telescope will automatically reposition itself for optimal viewing. This automation makes it easier for beginner and intermediate users to navigate the night sky.

Another notable characteristic of the Meade 12.5 is its sturdy construction. The telescope's design typically includes an aluminum or steel optical tube, providing stability and durability during observations. This is crucial for maintaining alignment and ensuring that the optical components remain secure, reducing vibrations that could hinder image quality.

Additionally, many models feature cooling fans that help to regulate the temperature of the primary mirror. This is particularly important for astrophotography, as temperature fluctuations can lead to distortions in the images captured. The cooling system ensures that the telescope reaches thermal equilibrium more quickly, allowing for clearer, more stable observations.

Overall, the Meade 12.5-inch telescope stands out due to its excellent optics, advanced technology, and robust design. Whether for deep-sky viewing or astrophotography, it offers a highly capable platform that caters to the diverse needs of astronomers. Its combination of features makes it a worthy investment for anyone serious about exploring the wonders of the universe.