SkyWatcher HELIOSTAR-76Ha 76MM F/8.3 H-Alpha solar telescope

SkyWatcher 3" H-Alpha solar telescope

Doublestack Performance with a Simple Etalon!

The very impressive Sky-Watcher Heliostar-76Hα is a safe solar telescope for observing active solar prominences and other solar details in the H-Alpha band with the exceptionally narrow bandwidth of only 0.5 Angstroms or less.

When you look at the Sun with such a narrow H-alpha bandwidth, you will be rewarded with exciting, awe-inspiring real-time observations of our nearest star in all its fiery glory. Their bubbling surface shows great details such as solar flares, protuberances, spicules, granulations or sunspots and much more!

The Heliostar-76Hα uses various technologies to protect your eyes during observation, including a coating against thermal infrared radiation, a special filter to block heat and a filter to block UV light and prevent stray light from interfering with observation. It uses a combination of front and back filters that only allows passage of monochromatic light of wavelength 656.28 nanometers emitted by the hydrogen atoms, while blocking all other wavelengths. This allows the observation of currently active prominences in the H-alpha band.

Sky-Watcher's Etalon technology allows the Heliostar-76Hα to achieve a bandwidth of just 0.5 Angstroms, without the costly and complex use of a second Etalon to achieve the same high performance. This allows the observer to obtain detailed images of the Sun “out of the box” without incurring additional costs.

The Heliostar-76Hα is compliant with and meets the transmission requirements of ISO 12312-2:2015 (filters for direct observation of the sun). Always use the telescope according to the instructions and exercise the utmost care when observing the Sun!

Equipment:

    Magnification (with included eyepiece): 31.5x
    Eyepiece 1.25" 20mm, 70° wide angle
    Telescope focal length: 630mm f/8.3
    Free opening 76mm
    Etalon bandwidth: <0.5 angstrom
    Tuning method: "Pressure tuning"
    11.5mm block filter
    90° (1.25") solar diagonal mirror
    Safe sun seeker
    2” dual speed Crayford focuser
    Pipe clamps and 45mm Vixen style dovetail bar with 1/4 inch thread
    Includes universal smartphone adapter
    Can be used for CCD photography with 1.25" adapter - back focus 58mm or less
    Sun image size: 6mm
    Sky-Watcher SolarQuest Solar Go-To/Tracking mount recommended (optional)
    Safety Compliance Certification: ISO12312-2:2015
    OTA length: 600mm
    OTA weight: 3.8kg
    Case included

Scope of delivery:

    Heliostar-76Hα telescope tube
    90° 1.25" diagonal mirror with block filter
    20mm 1.25" 70° wide angle eyepiece
    Sunseeker
    Pipe clamps with prism rail
    Suitcase

This new telescope will be available soon at your astro dealer, pre-order!
Generally
Shipping weight
8kg
Shipping size
70x40x25cm
optics
Construction type
H-Alpha solar telescope
Focal length (mm)
630
Opening (mm)
76
Opening ratio
f/8.3
Focuser
2" dual-speed Crayford focuser
Tube weight (kg)
3