Do you enjoy the Sun? It’s hot, it’s bright and it is responsible for beautiful summer sunsets.

On closer look our star has a lot more to offer than sunbathing. At the ECSJ Roel van der Heijden (freelance science journalist) will bring his self-built telescope to investigate our closest star (weather permitting). Maybe we’ll be able to see some sunspots on the surface of the Sun, and Roel will be happy to explain how he made his telescope and how he now uses it for astronomy outreach in his living room planetarium, the ‘Huiskamerplanetarium’ (

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