Description

Sky-Watcher Heliostar 76Hα Telescope Key features:

• Dedicated Hα Solar Telescope: This telescope is purpose-built solely for observing the Sun in the Hydrogen-alpha wavelength, revealing dynamic features not visible in white light.
• 76mm Aperture, 630mm Focal Length, f/8.3 Focal Ratio: These specifications define its light-gathering power and magnification capabilities, offering a balance for clear solar views.
• Bandpass < 0.5Å for High-Contrast Views: A very narrow bandpass allows it to isolate the specific Hα light, crucial for seeing fine details like prominences and filaments with excellent contrast.
• Solis Etalon Technology: This advanced etalon system delivers performance similar to more complex double-stack systems, but with the simplicity and lower cost of a single etalon.
• Trifid Tuning System: Allows precise adjustment of the etalon to compensate for Doppler shifts caused by the Sun's rotation and movement, ensuring optimal visibility of Hα features.
• Achromatic Doublet Optical Design: Utilizes a two-element lens to minimize chromatic aberration, resulting in sharper and clearer images.
• H-alpha Fully Multicoated Lens: All optical surfaces are specially coated to maximize light transmission at the Hα wavelength, ensuring bright and detailed views.
• 1/4 Wave Diffraction-Limited Optical Quality: This high standard of optical precision means the telescope delivers images as sharp as theoretically possible for its aperture.
• 6mm Solar Image Size: Provides a comfortably sized image of the entire solar disc through the eyepiece, perfect for full-disc observations.
• ISO 12312-2:2015 Compliant: Individually tested and certified to meet international safety standards for direct solar observation, ensuring your eyes are protected.
• Integrated Safety Filters: Includes an infrared thermal ray reflection film, a special heat-blocking filter, and a UV light-blocking filter, all working together for maximum eye safety.
• 11.5mm Blocking Filter in 1.25" Diagonal: This essential filter is built into the diagonal, ensuring only a safe amount of Hα light reaches your eye or camera sensor.
• Designed to Block Stray Light: The internal baffling and design prevent unwanted light from entering the optical path, enhancing contrast and image quality.
• 2" Dual-Speed Crayford Focuser: Offers incredibly smooth and precise focusing with both coarse and fine adjustment knobs, ideal for critical visual observations and astrophotography.
• Durable Aluminum Optical Tube, approx. 3.8kg Weight: Constructed from sturdy yet relatively lightweight aluminum, making it robust enough for regular use and manageable to transport.
• Compact 600mm Tube Length: Its manageable length makes it portable and easy to set up, perfect for taking to different viewing locations.
• Adaptable for Both Visual and Camera Use: Easily accommodates standard 1.25" eyepieces for visual observation and can connect 1.25" or T-thread astro cameras for solar imaging.
• Includes Mounting Rings and Vixen-Style Dovetail Bar: Provides a secure way to attach the telescope to most equatorial or alt-azimuth mounts with a Vixen-style saddle.
• Comes with Heliostar Solar Finder and Clip-on Sunshade: The solar finder helps you quickly and safely locate the Sun, while the sunshade reduces glare for better viewing.
• Includes 20mm 70° 1.25" Eyepiece for Full-Disc Views: A wide-field eyepiece is provided, perfectly matched to give you a complete view of the entire solar disc.
• Smartphone Adapter Included for Quick Imaging: A convenient accessory allows you to easily attach your smartphone to the eyepiece for taking quick pictures and videos of the Sun.
• Supplied with a Hard-Shell Carrying Case: A durable case protects the telescope and its accessories during transport and storage, ensuring it's always ready for your next solar session.
• Reveals Solar Prominences, Filaments, Sunspots, and Flares: This telescope truly brings the Sun to life, allowing you to observe its dynamic and ever-changing atmosphere in stunning detail.

Sky-Watcher Heliostar 76Hα H-Alpha Solar Telescope

Reveal the Sun in a Whole New Light

The Sky-Watcher Heliostar 76Hα is a dedicated Hydrogen-alpha solar telescope designed to uncover the dynamic and ever-changing nature of our closest star. Unlike white-light solar scopes that show only sunspots, this advanced instrument isolates the H-alpha wavelength (656.28nm), revealing stunning features such as solar prominences, filaments, sunspots, and flares—all in breathtaking contrast and detail.

At the heart of the Heliostar 76Hα is its 76mm aperture and 630mm focal length (f/8.3), striking an ideal balance between resolution and portability. It uses an achromatic doublet optical design, combined with H-alpha-optimized, fully multicoated lenses, to produce crisp, high-contrast solar images. Optical quality meets 1/4-wave diffraction-limited standards, ensuring each view is as sharp and clear as the laws of physics allow.

Thanks to Solis Etalon Technology, this telescope achieves a bandpass narrower than 0.5Å—the kind of contrast typically found only in expensive double-stack systems, yet with the simplicity, brightness, and affordability of a single-etalon design. The Trifid Tuning System allows users to finely tune the etalon, adjusting for Doppler shifts caused by solar motion and ensuring precise, contrast-rich views at all times.

Engineered for safety and performance, the Heliostar 76Hα is ISO 12312-2:2015 certified and features integrated safety filters that block harmful UV, infrared, and excess heat. An 11.5mm blocking filter, built into the 1.25" diagonal, limits the light to a safe and visually optimized level.

A durable aluminum optical tube (just 3.8kg) with internal baffling minimizes stray light and maximizes contrast. The 2" dual-speed Crayford focuser allows fine focus adjustments, perfect for both visual observation and high-resolution solar imaging. It comes complete with mounting rings, a Vixen-style dovetail bar, and a compact 600mm tube length—making setup quick and transport easy.

This comprehensive solar observing kit includes a 20mm 70° eyepiece for full-disc views, a smartphone adapter for quick and easy imaging, a clip-on sunshade to reduce glare, a Heliostar solar finder, and a hard-shell carry case to protect your gear on the go.

Whether you're a visual observer or solar photographer, the Sky-Watcher Heliostar 76Hα brings the active solar surface to life in astonishing detail—all while keeping your eyes safe and your setup simple.

🔭 Sky-Watcher Heliostar 76Hα Solar Telescope – Specifications

Click on the link below to see sample images captured with Sky-Watcher Heliostar 76Hα telescope:
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Click on the link below to download the manual for Sky-Watcher Heliostar 76Hα telescope:
Sky-Watcher Heliostar 76Hα telescope Manual