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The best proto-brown dwarf candidate so far
teaser

Brown dwarfs are sometimes called "failed stars". They are born from interstellar clouds although it is not clear if in a fashion similar to the formation of stars or planets. Brown dwarfs lack the required minimum mass to be able to sustain nuclear reactions in their interiors so they are also known as failed stars and have some properties resembling those of giant planets. Discovering proto-brown dwarfs, i.e., very young brown dwarfs, is key to understanding how nature produces them. A recent study has found the best proto-brown dwarf candidate known to date. Calar Alto has contributed key data to this finding…

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Photometry course for amateurs at Calar Alto
21.20 mag/sqrarcsecFrom the 16th to the 18th of October 2009, a course on astronomical photometry for amateur astronomers was given at Calar Alto Observatory. Using the professional facilities of the Observatory, this absolutely new initiative was conducted by Calar Alto specialists with the aim of training amateur astronomers in the basics of astronomical absolute photometry, applied to the standard measurement of the brightness of the night sky. The final goal is to constitute a wide group of people capable of contributing to international campaigns of evaluation and reduction of light pollution in Spain and Europe…
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The Ring Nebula
M57

The diversity of colours, shapes, and sizes of planetary nebulae make them fascinating objects. In this photo release Calar Alto presents a rather unique view combining both optical and near-infrared data of the Ring Nebula (M57)...

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Calar Alto Academy 2009
CAHA Academy 2009

This year’s edition of Calar Alto Academy represents the consolidation of this innovative effort to bring astronomy students to Calar Alto to perform practical observational work. The number of participants this year has been of 61, from a total of 6 Spanish universities. More universities and students may be added in future editions...

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Catch a Star 2008
teaserv1

As in the recent past, one of the winner teams of the international contest Catch a Star visits Calar Alto Observatory. Marta Kotarba, with her teacher Grzegorz Sęk, from Poland, shared with us three nights during which they were able to get close to Calar Alto facilities and the daily work at a modern astronomical observatory...

 

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