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File:Nebula and betelgeuse VLT.jpg

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English: Image of the supergiant star Betelgeuse obtained with the NACO adaptive optics instrument on ESO’s Very Large Telescope. The use of NACO combined with a so-called “lucky imaging” technique, allowed the astronomers to obtain the sharpest ever image of Betelgeuse, even with Earth’s turbulent, image-distorting atmosphere in the way. The resolution is as fine as 37 milliarcseconds, which is roughly the size of a tennis ball on the International Space Station (ISS), as seen from the ground. The image is based on data obtained in the near-infrared, through different filters. The field of view is about half an arcsecond wide, North is up, East is left.
English: This picture of the dramatic nebula around the bright red supergiant star Betelgeuse was created from images taken with the VISIR infrared camera on ESO’s Very Large Telescope (VLT). This structure, resembling flames emanating from the star, forms because the behemoth is shedding its material into space. The earlier NACO observations of the plumes are reproduced in the central disc. The small red circle in the middle has a diameter about four and half times that of the Earth’s orbit and represents the location of Betelgeuse’s visible surface. The black disc corresponds to a very bright part of the image that was masked to allow the fainter nebula to be seen.
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: merged two images. The original can be viewed here: Nebula around Betelgeuse.jpg. Modifications made by Henrykus.

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  • File:Betelgeuse_VLT.jpg licensed with Cc-by-3.0, Eso
    • 2009-08-04T17:14:41Z Henrykus 1230x1230 (41789 Bytes) {{Information |Description={{en|1=Image of the supergiant star Betelgeuse obtained with the NACO adaptive optics instrument on ESO’s Very Large Telescope. The use of NACO combined with a so-called “lucky imaging” techni

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23 June 2011

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current11:02, 26 June 2011Thumbnail for version as of 11:02, 26 June 20111,524 × 1,467 (411 KB)Henrykus{{Information |Description={{en|1=Image of the supergiant star Betelgeuse obtained with the NACO adaptive optics instrument on ESO’s Very Large Telescope. The use of NACO combined with a so-called “lucky imaging” technique, allowed the astronomers t
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