Calar Alto Sky: excellent not only in the vertical direction (photo release)

Sierra Nevada Calar Alto nights enjoy excellent conditions and extremely clear skies. Especially in the winter season, clouds and fog very often stay below the observatory's height of 2168 m above sea level. Prominent topographic features like the mountains of Sierra Nevada, approximately 70 km to the west of Calar Alto, appear as clear and sharp as if they were next door, and on a good night one can see Africa towards the south. In this photo release we offer two recent photographs that illustrate these facts...

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Call for Letters of Intent: Next generation instrument for 3.5m

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Call for letters of intent for the construction of the next generation instrument for CAHA 3.5m telescope

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Calar Alto Instrumentation Workshop Summary

 

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The Intrumentation Workshop Summary is here.

NGC 7331: a large spiral galaxy

teaser_7331 The spiral galaxy NGC 7331, in Pegasus, can be seen with small telescopes under dark skies as a faint fuzzy spot. It is an island universe similar to our own Galaxy (or maybe somewhat larger) and placed at a distance of 50 million light-years. NGC 7331 was discovered by Wilhelm Herschel in 1784, and it shows all its magnificence in long-exposure photographs taken through large telescopes. This Calar Alto image offers one of the best snapshots ever obtained of this stellar system...

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