Daniel K. Inouye Solar Telescope

Coordinates: 20 ° 42 ′ 24.5 ″  N , 156 ° 15 ′ 22 ″  W.

Daniel K. Inouye Solar Telescope on the left

Image of the granulation of the solar surface by means of DKIST. A section with a side length of 8,200 km is shown; Details with a size of 30 km are still recognizable.

The Daniel K. Inouye Solar Telescope (DKIST), previously the Advanced Technology Solar Telescope (ATST), is a solar telescope on the Hawaiian volcano Haleakala . With an aperture of 4 m, it is the largest solar observatory in the world and belongs to the US National Solar Observatory , which also operates the McMath-Pierce Solar Telescope and the Dunn Solar Telescope . After a construction period of 6 years, it was operated for the first time on December 10 and 12, 2019 and was completed in January 2020. It is named after Daniel K. Inouye , who was the US Senator for the state of Hawaii from 1963 until his death .

The telescope is a reflector telescope in a modified Gregory arrangement , in which the two mirrors are limited to areas outside the optical axis ( Schiefspiegler ) and thus do not cover each other. The concealment-free arrangement minimizes scattered light, which means that the comparatively weak solar corona in particular can be easily observed; the use of adaptive optics and image reconstruction techniques such as speckle interferometry is also simplified. The location of the telescope was also chosen because of its good seeing , so that the telescope can resolve 30 km large structures on the sun.

Web links

The National Solar Observatory (NSO), Daniel K. Inouye Solar Telescope, Makawao, Hawaii

Footnotes

1. ↑ ATST Schematic. Archived from the original on February 1, 2009 ; Retrieved February 12, 2009 . 
2. ^ The Advanced Technology Solar Telescope. Retrieved September 26, 2013 . 
3. ↑ NSF's newest solar telescope produces first images. Accessed January 30, 2020 . 
4. ^ Solar Telescope Named for Late Senator Inouye. National Solar Observatory , December 16, 2013; accessed October 21, 2015 . 

• SL Keil, TR Rimmele, J. Wagner, The ATST team: Advanced Technology Solar Telescope: A status report . In: Astronomical News . tape 331 , no. 6 , June 2010, p. 609–614 , doi : 10.1002 / asna.201011385 , bibcode : 2010AN .... 331..609K .