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- TL;DR Summary
- New images from the sun observed by Gregor on Teneriffa
Here is a nice example which shows how far popular science and actual science are apart. On one hand we have the eye catching photos of the sun's surface:
whereas the corresponding scientific paper on the other hand is very different:
GREGOR: Optics redesign and updates from 2018–2020
https://www.aanda.org/articles/aa/pdf/2020/09/aa38208-20.pdf
GREGOR: Optics redesign and updates from 2018–2020
https://www.aanda.org/articles/aa/pdf/2020/09/aa38208-20.pdf
The GREGOR telescope was inaugurated in 2012. In 2018, we began a complete upgrade, involving optics, alignment, instrumentation, mechanical upgrades for vibration reduction, updated control systems, and building enhancements, and in addition, adapted management and policies. This paper describes all major updates performed during this time. Since 2012, all powered mirrors except for M1 were exchanged. Since March 2020, GREGOR observes with diffraction-limited performance and a new optics and instrument layout.