Skywatcher Heliostar 76 H-Alpha Solar Telescope with SESTO SENSO

The SkyWatcher Heliostar 76mm H-Alpha Solar Telescope opens a new window into the dynamic surface of our star. Designed specifically for observing the Sun in the Hydrogen-alpha (Hα) wavelength at 656.28 nm, it reveals incredible chromospheric details invisible through standard white-light filters — including solar prominences, filaments, flares, and fine granulation.

With its 76mm aperture and 630mm focal length (f/8.3), the Heliostar provides crisp, high-resolution images. Its Solis Etalon technology with integrated tuner delivers a native <0.55Å bandpass, achieving double-stack level performance without the need for additional etalons. This makes it an exceptional choice for both visual observation and advanced imaging, offering excellent surface contrast and limb detail.

SkyWatcher H-Alpha Heliostar 76 solar telescope with SESTO SENSO: main features

- H-alpha fully multi-coated achromatic doublet optics

- 2-inch dual-speed Crayford focuser with SESTO SENSO 3 focusing motor for smooth and precise focusing

- 11.5mm blocking filter integrated in the 1.25” diagonal for safety and performance

- Integrated solar finder, tube rings, and Vixen-style dovetail

- Clip-on Sun shade, 20mm 70° eyepiece, smartphone adapter, and hard-shell carrying case

SkyWatcher H-Alpha Heliostar 76 telescope with EAGLE computer and 240mm Losmandy-style dovetail bar.

The Sky-Watcher Heliostar 76mm H-Alpha Solar Telescope has been laboratory tested in the United States to ensure compliance with ISO 12312-2 safety standards. Each telescope is individually tested under real solar conditions to confirm that every unit is ready for safe solar observation right out of the box. This is a dedicated solar telescope designed exclusively for viewing and imaging the Sun. Please exercise extreme caution when observing the Sun, as improper use or unsafe practices can cause severe and permanent eye injury. Additionally, the 11.5mm blocking filter located in the removable eyepiece diagonal is an essential component of the Heliostar’s safety system. Do not use the telescope with any other type of diagonal.

Sun captured by Filippo Bradaschia with SkyWatcher H-Alpha Heliostar 76 telescope, QHY5III174M camera, SESTO SENSO 3 focusing motor, EAGLE computer, on AZ-EQ5 mount.