NOVAStar telescope brand emerges

NOVAStar has entered the market as a new player in the realm of budget-friendly yet high-end APO ED refractors and other accessories. While little is known about the manufacturing company itself, 365Astronomy is launching these exclusively as a new "house brand", and they’ve already made an impression with their latest offerings. As of this writing, 365Astronomy is carrying two different NOVAStar refractor models, adding more competitive options alongside brands like Sky-Watcher and William Optics. NovaStar also has a lineup of beefy focal reducers, eyepieces, and more.

NOVAStar Emerald 80mm refractor

The Novastar Emerald ED80D 80mm f/6.25 ED Doublet APO Refractor OTA is a robust new entry in the refractor telescope market, built with durability in mind. At its core is an 80mm aperture ED doublet lens. While it’s not a triplet or a Petzval design like some may be accustomed to, its 80mm aperture still delivers impressive optical performance. With a 500mm focal length and an f/6.25 focal ratio, this telescope offers a relatively fast optical system, making it well-suited for both visual observation and astrophotography.

The "ED" in its name signifies the use of Extra-low Dispersion glass in its doublet apochromatic (APO) lens design. This design minimizes chromatic aberration—a common issue where different wavelengths of light fail to converge at the same point, leading to color fringing around bright objects. By employing ED glass, the Novastar Emerald ED80D delivers sharp, high-contrast images with true-to-life color representation while still keeping costs low.

Beyond its optical prowess, the Novastar Emerald ED80D boasts several mechanical features designed to enhance usability. The telescope is equipped with a dual-speed 2-inch rack-and-pinion focuser, allowing for precise focusing adjustments. This is particularly beneficial when fine-tuning the focus for high-magnification observations or astrophotography sessions.​

The telescope's tube is constructed from lightweight yet durable materials, ensuring both portability and longevity. A retractable dew shield is integrated into the design, helping to prevent moisture accumulation on the lens during humid observing conditions. Additionally, the telescope comes with tube rings and a Vixen-style dovetail plate, facilitating easy mounting on a variety of equatorial and alt-azimuth mounts.​

When considering the Novastar Emerald ED80D, it's beneficial to compare it to other telescopes in the 80mm refractor category. For instance, the Astro-Tech AT80EDT is an 80mm f/6 ED triplet refractor that utilizes FK-61 ED glass in its design. The triplet configuration of the AT80EDT offers excellent color correction and sharpness, making it a strong contender in this category.

Similarly, the StellaMira 80mm ED f/6.25 refractor telescope features fully multi-coated, air-spaced ED doublet optics with ED glass equivalent to FPL-53. This telescope is praised for its sharp, high-contrast images with minimal chromatic aberration.

This apochromatic telescope comes with a pair of tube rings, and a long Losmandy-style dovetail bar

The Novastar Emerald ED80D is designed to cater to both visual observers and astrophotographers. Its relatively fast focal ratio of f/6.25 makes it suitable for capturing wide-field images of star clusters, nebulae, and galaxies. The high-quality ED optics ensure that these images are sharp and exhibit minimal chromatic aberration, which is crucial for producing professional-grade astrophotographs.​

For visual observers, the telescope provides crisp and clear views of various celestial objects. The 80mm aperture is sufficient to reveal details in lunar craters, the rings of Saturn, and the cloud bands of Jupiter. Open star clusters and brighter nebulae are also well within reach, offering a satisfying observing experience for both beginners and seasoned astronomers.​

One of the standout features of the Novastar Emerald ED80D is its portability. Weighing in at a manageable level and featuring a compact tube length, it is well-suited for astronomers who require a travel-friendly setup. The retractable dew shield further reduces the telescope's size during transportation, making it convenient to carry to remote observing sites.​

The inclusion of tube rings and a Vixen-style dovetail plate ensures compatibility with a wide range of mounts. This versatility allows users to pair the telescope with their preferred mounting system, be it a lightweight alt-azimuth mount for quick setup or a more robust equatorial mount for extended astrophotography sessions.​

The Novastar Emerald ED80D 80mm f/6.25 ED Doublet APO Refractor OTA represents a harmonious blend of optical excellence, mechanical reliability, and user-friendly design. Its high-quality ED optics deliver sharp, color-accurate images, while its thoughtful mechanical features enhance the overall observing and imaging experience. Whether you're an avid astrophotographer seeking a portable imaging instrument or a visual observer desiring crisp views of the night sky, the Novastar Emerald ED80D is a compelling option to consider in the realm of 80mm refractor telescopes.

NOVAStar Emperor ED110D 110mm f/6 ED Doublet APO Refractor OTA

​The NovaStar Emperor ED110D 110mm f/6 ED Doublet APO Refractor is a recent addition to the array of high-quality telescopes available to both amateur and professional astronomers. This instrument combines advanced optical design with user-friendly features, making it a versatile choice for various astronomical applications.​

At the heart of the Emperor ED110D is a 110mm aperture ED (Extra-low Dispersion) doublet lens system with a focal ratio of f/6. This configuration strikes a balance between light-gathering capability and portability. The use of ED glass, comparable to FPL-51, minimizes chromatic aberration, resulting in sharp and high-contrast images with minimal color fringing. This is particularly beneficial for observing bright celestial objects like the Moon and planets, where color accuracy is crucial.​

The fast f/6 focal ratio provides a wide field of view, making the telescope well-suited for deep-sky observations and astrophotography. Users can capture expansive regions of the night sky, including star clusters, nebulae, and galaxies, with impressive clarity.​

The telescope boasts a robust 2.7-inch dual-speed Rack & Pinion focuser with a 1:10 fine focus ratio, allowing for precise focusing adjustments essential for both visual observations and imaging. The focuser's design ensures smooth operation and can support heavy imaging equipment without slippage, accommodating setups weighing up to 17 pounds.​

A retractable aluminum dew shield is integrated into the design, protecting the objective lens from dew formation during extended observing sessions. This feature is particularly valuable in humid environments where dew can quickly accumulate on optical surfaces, hindering performance.​

The telescope comes equipped with CNC-machined tube rings and a Vixen-style dovetail mounting bar, ensuring compatibility with a wide range of mounts and enhancing stability during observations or imaging sessions.

Weighing approximately 5.2 kilograms and measuring 550mm in length with the dew shield retracted, the Emperor ED110D is designed with portability in mind. Its compact form factor allows for easy transportation and setup, making it an excellent choice for astronomers who travel to dark-sky sites or engage in outreach programs.​

The telescope's aluminum construction not only contributes to its durability but also aids in efficient thermal management, allowing the instrument to reach thermal equilibrium relatively quickly, a critical factor for achieving optimal optical performance.​

For astrophotographers, the Emperor ED110D offers compatibility with optional field flatteners and reducers. These accessories correct for field curvature inherent in fast optical systems, ensuring sharp stars across the entire image frame. Specifically, a 0.8x reducer/flattener is available, reducing the focal ratio to f/4.8 and widening the field of view, which is advantageous for capturing large nebulae and expansive star fields.​

The Emperor ED110D shares similarities with other telescopes in its class, such as the StellaMira 110mm ED Doublet f/6 Refractor and the Orion EON 110mm ED f/6.0 Refractor. All three models utilize a 110mm aperture ED doublet design with an f/6 focal ratio, aiming to provide a balance between portability and performance.​

The StellaMira 110mm ED Doublet is noted for its high-contrast views and minimal false color, attributed to its fully multi-coated optics and ED glass lens. Users have praised its sturdy 2.7-inch dual-speed Rack & Pinion focuser for precise adjustments, enhancing both visual and photographic experiences.

Similarly, the Orion EON 110mm ED f/6.0 Refractor features an air-spaced doublet lens made with FPL-51 ED glass, delivering outstanding color correction suitable for wide-field astrophotography and visual observations. Its 2.7-inch dual-speed hybrid-drive focuser supports substantial imaging gear, accommodating setups weighing up to 17 pounds without slippage.

The NovaStar Emperor ED110D 110mm f/6 ED Doublet APO Refractor emerges as a compelling option for astronomers seeking a versatile and portable telescope capable of delivering high-quality visual and photographic results. Its thoughtful design, incorporating quality optics and robust mechanical components, ensures a rewarding experience for both novice and seasoned astronomers. When considering this telescope, potential users should assess their specific observing and imaging needs, as well as their tolerance for minor chromatic aberrations inherent in fast ED doublet designs. Overall, the Emperor ED110D stands as a testament to the advancements in optical technology, making high-performance telescopes more accessible to the broader astronomy community.

New Telescopes from 365Astronomy - Astrofest 2025 Interview

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