https://polaris.astro.physik.uni-potsdam.de/wiki/ Tue, 07 Apr 2026 17:23:54 +0000 FeedCreator 1.8 https://polaris.astro.physik.uni-potsdam.de/wiki/lib/exe/fetch.php?media=wiki:logo.png https://polaris.astro.physik.uni-potsdam.de/wiki/ https://polaris.astro.physik.uni-potsdam.de/wiki/doku.php?id=en:ost:telescope:mobile&rev=1775110896&do=diff Our mobile telescopes Besides our fixed main telescope, the CDK20 from Planewave, our telescope family currently includes the following telescopes: Telescope Potential use cases C14 Deep sky & planets C11 Deep sky, planets & white-light solar observations with a solar filter rhainich@undisclosed.example.com (rhainich) Thu, 02 Apr 2026 06:21:36 +0000 https://polaris.astro.physik.uni-potsdam.de/wiki/doku.php?id=en:ost:telescope:heliostar76&rev=1775047148&do=diff Sky-Watcher Heliostar 76 Hα Overview The Sky-Watcher Heliostar 76 Hα is a dedicated solar telescope designed exclusively for observing the Sun in the hydrogen-alpha (Hα) band at a wavelength of 656.28 nm. Unlike white-light filters, which show only the photosphere, an Hα telescope reveals the chromosphere — the outer layer of the Sun's atmosphere. This makes visible details that remain invisible through a standard solar filter: prominences, filaments, flares, and spicules. rhainich@undisclosed.example.com (rhainich) Wed, 01 Apr 2026 12:39:08 +0000