ESOblog - GRAVITY+: The next leap forward for the VLTI
ESO, European Organisation for Astronomical Research in the Southern Hemisphere
Source: eso.org
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ESO, European Organisation for Astronomical Research in the Southern Hemisphere
ESO, European Organisation for Astronomical Research in the Southern Hemisphere
Two bright laser beams seen in the image are used to correct the distortion of starlight in Earth's atmosphere, as seen by the telescope.
A new long exposure image from the European Southern Observatory captures stars as they travel overhead, creating what is known as star trails with the help of bright laser guide star beams.
ESO, European Organisation for Astronomical Research in the Southern Hemisphere