File:High-Resolution Spectrum of the Star HD100623 (Raw).jpg
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![File:High-Resolution Spectrum of the Star HD100623 (Raw).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/High-Resolution_Spectrum_of_the_Star_HD100623_%28Raw%29.jpg/570px-High-Resolution_Spectrum_of_the_Star_HD100623_%28Raw%29.jpg?20150607051840)
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[edit]DescriptionHigh-Resolution Spectrum of the Star HD100623 (Raw).jpg |
English: A HARPS untreated ("raw") exposure of the star HD100623, of the comparatively cool stellar spectral type K0V. The frame shows the complete image as recorded with the 4000 x 4000 pixel CCD detector in the focal plane of the spectrograph. The horizontal white lines correspond to the stellar spectrum, divided into 70 adjacent spectral bands which together cover the entire visible wavelength range from 380 to 690 nm. Some of the stellar absorption lines are seen as dark horizontal features; they are the spectral signatures of various chemical elements in the star's upper layers ("atmosphere"). Bright emission lines from the heavy element thorium are visible between the bands - they are exposed by a lamp in the spectrograph to calibrate the wavelengths. This allows measuring any instrumental drift, thereby guaranteeing the exceedingly high precision that qualifies HARPS. |
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Source | http://www.eso.org/public/archives/images/original/eso0308c.jpg (original image) / http://www.eso.org/public/france/images/eso0308c/ (description) |
Author | ESO |
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This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. |
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current | 05:18, 7 June 2015 | ![]() | 976 × 1,026 (321 KB) | SenseiAC (talk | contribs) | User created page with UploadWizard |
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Source | European Southern Observatory |
Credit/Provider | ESO |
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Date and time of data generation | 00:00, 27 March 2003 |
Orientation | Normal |
Horizontal resolution | 57.002334594727 dpi |
Vertical resolution | 0.13838058440332 dpi |
File change date and time | Adobe Photoshop CS3 |
Color space | Uncalibrated |
Image width | 976 px |
Image height | 1,026 px |
Software used | Adobe Photoshop CS3 Macintosh |
Date and time of digitizing | 12:04, 20 January 2009 |
Date metadata was last modified | 12:31, 20 January 2009 |
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Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |