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Reflector Telescopes

Reflector Telescopes

Reflector telescopes, often referred to as Newtonian telescopes after their creator Sir Isaac Newton, are ingenious instruments designed to capture and amplify distant celestial wonders. They operate based on the principle of reflecting light using mirrors, providing a pathway for the gathered light to reach your eye. This design offers a range of advantages, contributing to their popularity among astronomers.
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At the heart of a reflector telescope lies the primary mirror, which gathers and focuses incoming light. This light is then redirected to a secondary mirror positioned at an angle within the telescope tube. The secondary mirror reflects the gathered light out of the side of the telescope, leading it to an eyepiece or camera for observation or imaging. This arrangement eliminates chromatic aberration, a common issue in refractor telescopes, and enables the creation of larger apertures without increasing the length of the telescope tube.

Advantages of Newtonian Telescopes

Aperture Advantage

Reflector telescopes are renowned for their larger apertures, which allow them to collect a substantial amount of light. This light-gathering ability translates to clearer and brighter images, unveiling finer details of celestial objects.


The mirror-based design of reflector telescopes often makes them more affordable than their refractor counterparts of similar apertures. This accessibility ensures that aspiring astronomers can embark on their cosmic explorations without breaking the bank.


Newtonian telescopes are versatile instruments suitable for a wide range of astronomical observations. Whether you’re observing distant galaxies, capturing stunning lunar craters, or studying the intricate details of planets, a reflector telescope can meet your diverse needs.

Easy Collimation

Collimation, the process of aligning the mirrors for optimal performance, is relatively straightforward in reflector telescopes. Regular collimation ensures that your telescope consistently delivers crisp and focused views.

Elevate Your Stargazing Experience With Our Reflector Telescopes Today

At Sidereal Trading, we take pride in curating a selection of reflector telescopes that cater to astronomers of varying expertise levels. Our offerings encompass a range of sizes, focal lengths, and features to suit your specific preferences and observational goals. Whether you’re a novice keen to explore the moon’s surface or an experienced observer seeking to uncover the depths of the universe, we have a reflector telescope that aligns with your aspirations.

As you navigate our collection, you’ll encounter reputable brands renowned for their commitment to precision and innovation. Buy your Newtonian telescope from Sidereal Trading today.
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    Need Expert Advice?

    Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

    Enquire now or call us (03) 9042 2293

    Reflector Telescopes - FAQs

    How do reflector telescopes differ from other types?

    The main distinguishing feature of reflector telescopes is their use of mirrors rather than lenses. Mirrors are adept at collecting and focusing light from far-away objects, enabling astronomers to view galaxies, nebulae, and other distant wonders. Additionally, reflector telescopes can be more compact than their refractor counterparts, making them a popular choice for many astronomers.

    Are reflector telescopes suitable for beginners?

    Yes - the straightforward design and affordability of reflector telescopes make them an excellent choice for beginners. However, like any instrument, there"s a learning curve. It's always advisable to start with easier-to-spot objects like the moon or nearby planets before progressing to deep-sky objects.

    How do I maintain and clean my reflector telescope?

    Maintenance is crucial to ensure your reflector telescope provides clear and sharp images. Regularly inspect your telescope for dust and debris. Use a soft brush or compressed air to remove particles from the surface. For a deeper clean, always refer to the manufacturer"s instructions or consult with professionals.

    Apart from Newtonian telescopes, what other telescopes do you have in your collection?

    Sidereal Trading is a leading provider of Telescopes Melbourne-wide. We offer an extensive range of Refractor telescopes, Cassegrain telescopes, Dobsonian telescopes, and more.

    Keep in mind that our expertise goes far beyond astronomy. We also invite you to check out our other offerings, such as our Digital microscope collection.