The Chromospheric Telescope

Abstract

We introduce the Chromospheric Telescope (ChroTel) at the Observatorio del Teide in Izana on Tenerife as a new multi-wavelength imaging telescope for full-disk synoptic observations of the solar chromosphere. We describe the design of the instrument and summarize its performance during the first one and a half years of operation. We present a method to derive line-of-sight velocity maps of the full solar disk from filtergrams taken in and near the He I infrared line at 10830 Å.

12 pages, 9 figures

References in corpus (2)

• Magnetic properties of G-band bright points in a sunspot moat
• The influence of coronal EUV irradiance on the emission in the He I 10830 A and D3 multiplets

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