File:A Planetary Nebula (N66) in the Large Magellanic Cloud (1992-08-57).tiff
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[edit]DescriptionA Planetary Nebula (N66) in the Large Magellanic Cloud (1992-08-57).tiff |
English: The NASA Hubble Space Telescope (HST) has imaged N66, a planetary nebula in the Large Magellanic Cloud (a satellite galaxy of our own Milky Way galaxy). The image was obtained at 10:41 p.m. EDT on June 26, 1991, using the European Space Agency's Faint Object Camera. This HST image is being presented on Thursday, January 16 at the 179th meeting of the American Astronomical Society in Atlanta, Georgia. This is the first time a planetary nebula has ever been seen so clearly in a galaxy beyond our own Milky Way. The nebula N66 is located 169,000 light-years away. The FOC image reveals complex structures and details as small as 0.08 light-years across (0.1 arcsecond resolution). None of these structures had ever been seen with ground-based telescopes. Although such an asymmetric structure had been anticipated based upon spectroscopic data taken with ground-based telescopes, the observed patterns are unprecedented. The FOC exposure lasted for just 540 seconds and was made through a filter which isolated the light of doubly ionized oxygen (5007 Angstroms). The image has been sharpened by computer image reconstruction, though all the structures are clearly evident in the raw image. The brightest part of the nebula has an angular diameter of about 2.4 arcseconds, which corresponds to a size of 1.9 light-years. The nebula was ejected by a luminous red giant star, which subsequently contracted to form a blue remnant star. Located at the center of the image, this remnant star ionizes the nebula, causing it to glow at visible and ultraviolet wavelengths. The star is destined to become a white dwarf. Individual lobes of the nebulosity are expanding from the center with velocities of up to one quarter million miles per hour (100 kilometers per second). |
Date | 8 April 1992 (upload date) |
Source | A Planetary Nebula (N66) in the Large Magellanic Cloud |
Author | Credit: J.C. Blades/NASA/ESA |
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[edit]Public domainPublic domainfalsefalse |
This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag. |
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current | 20:45, 27 November 2023 | 2,449 × 2,369 (3.54 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://stsci-opo.org/STScI-01EVTB6ZA0EGNRHT29A8V0HZB3.tif via Commons:Spacemedia |
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Width | 2,449 px |
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Height | 2,369 px |
Bits per component | 8 |
Compression scheme | LZW |
Pixel composition | Black and white (Black is 0) |
Number of components | 1 |
Number of rows per strip | 3 |
Horizontal resolution | 2,700 dpi |
Vertical resolution | 2,700 dpi |