Astronomers using ESO’s Very Large Telescope have for the first time directly observed granulation patterns on the surface of a star outside the Solar System — the ageing red giant π1 Gruis. This remarkable new image from the PIONIER instrument reveals the convective cells that make up the surface of this huge star, which has 350 times the diameter of the Sun. Each cell covers more than a quarter of the star’s diameter and measures about 120 million kilometres across. These new results are being published this week in the journal Nature.
The release, images and videos are available on:
http://www.eso.org/public/news/eso1741/
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The ESO Education and Public Outreach Department
20 December 2017
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18 December 2017: ESO has signed a new agreement with TOPTICA, the German photonics company, for the production of lasers to be used in ESO’s Extremely Large Telescope (ELT) adaptive optics system ...
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Author: Stefano Mian
Author: Daniele Rocchi
Author: Luca Ronchi
15 December 2017: The Extremely Large Telescope (ELT) promises to open a whole new chapter in astronomy when it sees first light in 2024, and scientists, engineers, designers and other experts are enthusiastically ...
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19 December 2017: On 15 December 2017, ESO Representative Fernando Comeron welcomed Dutch theoretical physicist Gerard 't Hooft to ESO's Paranal Observatory.
A professor at Utrecht University, the Netherlands, 't Hooft is ...
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