Travel Scope Specifications

 

Model # 21035

 

 

 

Optical Design

Refractor

 

Aperture

70mm (2.8")

 

Focal Length

400mm

 

 

Focal Ratio

f/5.7

 

 

Optical Coatings

Fully Coated

 

Finderscope

5x24

 

 

Diagonal

Erect Image - 45° 1.25"

 

 

 

 

Eyepieces

20mm 1.25" (20x)

 

10mm

1.25"

(40x)

 

 

 

Apparent Field of View

20mm @ 50°

 

 

10mm @ 50°

 

 

 

 

Angular Field of View

20mm @ 2.5°

 

 

10mm @ 1.3°

 

 

 

Linear Field of View -- ft/1000yards /

20mm @ 131/44

m/1000meters

10mm @ 67/22

 

 

 

Near Focus w/20mm Eyepiece

19' (5.8m)

 

 

 

 

 

Mount

Altazimuth (Photo Tripod)

Altitude Locking Knob

Yes

 

 

Azimuth Locking Knob

No

 

 

 

 

 

 

 

 

 

 

Highest Useful Magnification

168x

 

 

Limiting Stellar Magnitude

11.7

 

 

Resolution -- Raleigh (arc seconds)

1.98

 

 

Resolution -- Dawes Limit " "

1.66

 

 

Light Gathering Power

100x

 

 

 

 

 

 

Optical Tube Length

17" (43cm)

 

Telescope Weight

3.3# (1.5Kg)

 

 

 

 

 

Note: Specifications are subject to change without notice or obligation.

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Celestron 21035 manual Travel Scope Specifications

21035 specifications

The Celestron 21035 is a high-quality, versatile telescope that caters to both novice and experienced astronomers. This reflector telescope is part of the AstroMaster series, known for its ease of use, excellent optical performance, and sturdy construction. One of its standout features is the 70mm aperture, which allows for bright and clear images of celestial objects. The larger the aperture, the more light the telescope can gather, making it ideal for viewing the Moon, stars, and even some of the more distant planets in our solar system.

One of the key technologies integrated into the Celestron 21035 is its fully coated glass optics. The objective lens and the eyepieces feature multiple layers of coatings, enhancing light transmission and delivering sharper images with improved contrast. This optical design ensures that both the colors and details of celestial objects are rendered accurately, which is crucial for astronomical observation.

Ease of setup is another highlight of the Celestron 21035. The telescope comes with a pre-assembled mount and optical tube, allowing users to get started with minimal effort. The simple, intuitive design is perfect for beginners who want to dive into stargazing without being overwhelmed by complicated setup processes. The lightweight and portable nature of the telescope makes it easy to transport, whether you are going to a local observatory or simply heading to your backyard for some nighttime exploration.

Additionally, the Celestron 21035 features an adjustable, full-height tripod that provides sturdy support, minimizing vibrations and maintaining stability while observing. The mount is manually operated with slow-motion controls, enabling precise targeting of celestial objects. Users can easily track their target as it moves across the sky, enhancing the viewing experience.

For those who enjoy astrophotography, the Celestron 21035 offers the option to attach a smartphone or a camera, allowing you to capture stunning images of the night sky. The telescope's versatility is further highlighted by its compatible eyepiece sizes, providing users with the ability to swap in different magnifications based on their interests.

In summary, the Celestron 21035 is an excellent choice for anyone looking to explore the wonders of the universe. With its robust optical performance, user-friendly design, and impressive features, it serves as a reliable tool for amateur astronomers and seasoned stargazers alike. Whether you’re observing lunar craters or distant galaxies, the Celestron 21035 promises an enjoyable and enriching experience under the stars.