File:The Crab Nebula in Taurus (eso9948f).tif
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![File:The Crab Nebula in Taurus (eso9948f).tif](https://upload.wikimedia.org/wikipedia/commons/thumb/8/8b/The_Crab_Nebula_in_Taurus_%28eso9948f%29.tif/lossy-page1-596px-The_Crab_Nebula_in_Taurus_%28eso9948f%29.tif.jpg?20230330090507)
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[edit]DescriptionThe Crab Nebula in Taurus (eso9948f).tif |
English: This photo shows a three colour composite of the well-known Crab Nebula (also known as Messier 1), as observed with the FORS2 instrument in imaging mode in the morning of November 10, 1999. It is the remnant of a supernova explosion at a distance of about 6,000 light-years, observed almost 1,000 years ago, in the year 1054. It contains a neutron star near its centre that spins 30 times per second around its axis (see below).
In this picture, the green light is predominantly produced by hydrogen emission from material ejected by the star that exploded. The blue light is predominantly emitted by very high-energy ("relativistic") electrons that spiral in a large-scale magnetic field (so-called synchrotron emission). It is believed that these electrons are continuously accelerated and ejected by the rapidly spinning neutron star at the centre of the nebula and which is the remnant core of the exploded star. This pulsar has been identified with the lower/right of the two close stars near the geometric centre of the nebula, immediately left of the small arc-like feature, best seen in ESO Press Photo eso9948. Technical information: ESO Press Photo eso9948 is based on a composite of three images taken through three different optical filters: B (429 nm; FWHM 88 nm; 5 min; here rendered as blue), R (657 nm; FWHM 150 nm; 1 min; green) and S II (673 nm; FWHM 6 nm; 5 min; red) during periods of 0.65 arcsec (R, S II) and 0.80 (B) seeing, respectively. The field shown measures 6.8 x 6.8 arcminutes and the images were recorded in frames of 2048 x 2048 pixels, each measuring 0.2 arcseconds. North is up; East is left. |
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Source | https://www.eso.org/public/images/eso9948f/ |
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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:05, 30 March 2023 | ![]() | 4,961 × 4,990 (70.91 MB) | Junior Jumper (talk | contribs) | Uploaded a work by ESO from https://www.eso.org/public/images/eso9948f/ with UploadWizard |
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Width | 4,961 px |
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Height | 4,990 px |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Image data location | 24,592 |
Number of components | 3 |
Number of rows per strip | 4,990 |
Bytes per compressed strip | 74,266,170 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 7.0 |
File change date and time | 16:00, 27 January 2004 |
Color space | Uncalibrated |
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