Sky-Watcher Heliostar 76mm H-Alpha Solar Telescope

Description

Heliostar 76mm H-Alpha Solar Telescope Explore the Sun Like Never Before

Experience the Sun in stunning detail with the Heliostar 76mm H-alpha Solar Telescope, a revolutionary addition to the Sky-Watcher lineup. Designed specifically for Hydrogen-alpha (H) solar observation, this dedicated telescope reveals the dynamic surface of the Sun far beyond what a standard white-light filter can offer. Witness breathtaking solar prominences, dancing spicules, erupting flares, bright plage patches, intricate surface granulation, plasma filaments, and much morebringing the fiery heart of our solar system to life in ways youve never seen before.

Double the Fun No Need for Costly Double Stack Systems

Unlike traditional solar telescopes requiring expensive double-stack etalons, the Heliostar 76H natively achieves an ultra-narrow <0.5 bandpass for rich surface detail. With its76mm aperture, high-resolution solar viewing and imaging are effortlessgiving you professional-grade performance at an unbeatable value.

Safety First Lab Tested & Certified

Your safety is Sky-Watcher’s priority. The Heliostar 76mm H-alpha Solar Telescope meets ISO 12312-2 safety standards and isindividually tested on the Sunbefore leaving our facility.

Important Safety Notes:
– This is a dedicated solar telescope and should only be used for solar observation.
– Incorrect usage can result in serious, permanent eye damagealways follow safe solar observing practices.
– The 11.5mm blocking filter in the removable diagonal is a critical safety featuredo not use with any other diagonal.

Whats in the Box?

The Heliostar 76H comes fully equipped for safe solar viewing right out of the box.

Included Accessories:
Mounting rings & V-style dovetail
Heliostar solar finder
Dual-speed Crayford focuser
11.5mm blocking filter
Clip-on sunshade
20mm 70 1.25 eyepiece
Smartphone adapter for quick solar photography
Rugged carrying case for easy transport

Pair it with the Sky-Watcher SolarQuest mount for the ultimate portable solar observing experience!

Hydrogen Alpha Technology A Window into the Suns Chromosphere

Unlike white-light telescopes that capture the Suns full spectrum, H solar telescopes isolate the 656.3 nm wavelength, revealing the Suns chromospherethe layer just above the photosphere where incredible solar activity occurs. With the Heliostar 76H, you can observe:

Solar prominences Towering arcs of plasma on the Suns limb
Sunspots & active regions Birthplaces of solar flares
Plage patches Bright, magnetically active areas
Filaments & spicules Wispy plasma structures moving across the surface
Granulation patterns The Suns ever-changing texture

Revolutionary Etalon Filter Technology

At the core of every H solar telescope is the etalon filter, a precision optical device that isolates the H wavelength by using two finely spaced parallel mirrors. Unlike traditional systems that require costly double etalons for improved contrast, theHeliostar 76H integrates advanced Solis Etalon Technology, achieving a0.55 bandpass without sacrificing brightness or requiring additional filters.

Solis Etalon Technology High Contrast Without the Cost

Standard double-stack systems darken the image by 40%, forcing you to choose between bright prominences or enhanced surface contrast. With Solis Etalon Technology, you get bothwithout the extra cost.

Trifid Tuner Precision Tuning for Maximum Detail

The Trifid Tuning System applies precise pressure to the etalon plates, allowing fine adjustments to capture the richest solar detail. Unlike other tuning mechanisms, the three-vein support system ensures stability without adding unnecessary stress to peripheral components.

See the Sun Like Never Before with Heliostar 76H

Whether youre an astronomy enthusiast, an educator, or an astrophotographer, the Sky-Watcher Heliostar 76mm H-alpha Solar Telescope offersprofessional-grade solar observing at an unmatched value.

Sky-Watcher Heliostar 76mm H-Alpha Solar Telescope Highlights:

• Double stack performance, single stack price
• 76mm aperture
• 630mm focal length
• f/8.3
• Official solar telescope of the Charlie Bates Solar Astronomy Project
• Integrated Heliostar solar finder, tube rings, and carry handle
• Integrated Triffid Tuner and Solis Etalon Technology
• <0.5 bandpass
• H-alpha fully multicoated lens
• Achromatic doublet design
• 2-inch dual-speed Crayford focuser
• 11.5mm, 1.25 diagonal format blocking filter
• Weight: 8.4 lbs.
• Includes: OTA, mounting rings, V-style dovetail, clip-on Sun shade, 20mm 70 1.25″ eyepiece, camera phone adapter, hard-shell carrying case

Tech Details:

Optical Specifications
Optical Design	Achromatic
Lens Coating	H-alpha fully multicoated
Lens Design	Doublet
Optical Quality	Diffraction limited (1/4 wave)
Collimatable Cell	No (Self Aligning Cell)
Primary Aperture	76mm
F/Ratio	8.3
Focal Length	630mm
Blocking Filter Size	11.5mm
Solar Image Size	6mm
Bandpass	< 0.5
Mechanical Specifications
Focuser Type	Crayford
Focuser Size	2″
Focuser: Dual or Single Speed	Dual speed
Compression Ring	No* (Only on diagonal)
OTA material	Aluminum
Optical Tube length (inches)	24″
Optical Tube weight (pounds)	8.4 pounds
Mounting Rings?	Mounting Rings
Dovetail type	V-style
Accessories
Eyepieces	20mm 70 1.25″ eyepiece
Diagonal	11.5mm 1.25″ H-alpha blocking diagonal
Camera Adapter	Cell phone adapter
Additonal Accessories	Sun shade
Included finder	Heliostar solar finder
Manual	Digital PDF
Case	Yes
Observational Info
Dawes Limit	1.52
Rayleigh Limit	1.84
Limiting Magnitude	11.88
Minimum Magnification	7x
Maximum Magnification	150x
Magnification with included eyepieces	32x
Intended use	Solar (visual & Imaging)