This telescope uses multiple technologies to protect the human eye during observation, including a thermal infrared reflection film, a special filter to block heat, and a filter to block the entry of ultraviolet light, thus blocking stray light that affects the observation.

The Heliostar 76H? telescope uses a combination of front and rear filters to allow only monochromatic light with a wavelength of 656.28 nanometers emitted by hydrogen atoms to pass through, while blocking other light with different wavelengths.

This allows the observation of quite active prominences in the H-a band. The bandpass is less than 0.5 angstroms.

Scope of Delivery:

• Skywatcher Heliostar 76/630 Solar prominence telescope