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On the observation deck stands a refractor telescope, the Celestron 80mm, half-apochromatic lens. A Herschel Prism guarantees safe observation of the sun. With this we can see the Photosphere, each layer of the sun’s atmosphere. Dark, somewhat cooler spots, so-called sunspots, some of which are several times larger than our Earth, are visible.

In the observatory, next to the reflector telescope, is a high-grade refractor telescope, a so-called "Fluorite Apochromat." With this you can experience a highlight of solar observation from the H-Alpha surface filter. With this specialized filter the true surface of the sun, the Chromosphere, in a narrow, defined area of light, is visible. In the H-Alpha light spectrum the sun appears lusciously red, and next to the sunspots you can also see very clearly structures, filaments, rays breaking out, sun flares, etc. - and also at the sun’s edge the larger protuberances.


80m Refractor Telescope (half apochromatic lens from Celestron) on the platform, solar observation with Herschel Prism
The Herschel Prism absorbs up to 99.9% of the sun’s light
Heat absorption through ceramic from Spaceshuttle-Technology
Saddled onto the reflective telescope in the observatory:
110mm Fluorite-Apochromat from the Telescope Engineering Company with Fluorite-crystal refractor system

H-Alpha Filter Solar Spectrum "Advanced Solar Observer" with 0.5 Angstrom half-power bandwidth to observe light at 656.28mm wavelengths

  • watch the sun at Pacheiner's Alpine Guest House