File:Abell 665 - HST Potw1744a.tif
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DescriptionAbell 665 - HST Potw1744a.tif |
English: Abell’s richest cluster
This particular cluster is called Abell 665. It was named after its discoverer, George O. Abell, who included it in his seminal 1958 cluster catalogue. Abell 665 is located in the well-known northern constellation of Ursa Major (The Great Bear). This incredible image combines visible and infrared light gathered by the NASA/ESA Hubble Space Telescope using two of its cameras: the Advanced Camera for Surveys and the Wide Field Camera 3. Abell 665 is the only galaxy cluster in Abell’s entire catalogue to be given a richness class of 5, indicating that the cluster contains at least 300 individual galaxies. Because of this richness, the cluster has been studied extensively at all wavelengths, resulting in a number of fascinating discoveries — among other research, Abell 665 has been found to host a giant radio halo, powerful shockwaves, and has been used to calculate an updated value for the Hubble constant (a measure of how fast the Universe is expanding).
Credit: ESA/Hubble & NASA
Coordinates Position (RA): 8 30 58.38 Position (Dec): 65° 50' 27.33" Field of view: 3.36 x 3.33 arcminutes Orientation: North is 91.8° left of vertical Colours & filters Band Wavelength Telescope Optical B 435 nm Hubble Space Telescope ACS Optical V 606 nm Hubble Space Telescope ACS Optical I 814 nm Hubble Space Telescope ACS Infrared H 1.6 μm Hubble Space Telescope WFC3. |
Date | 30 October 2017, 06:00 (release) |
Source | https://www.spacetelescope.org/images/potw1744a/ |
Author | Credit: ESA/Hubble & NASA |
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ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:29, 30 October 2017 | 4,029 × 4,002 (28.01 MB) | Fabian RRRR (talk | contribs) | =={{int:filedesc}}== {{Information |description={{en|1='''Abell’s richest cluster The Universe contains some truly massive objects. Although we are still unsure how such gigantic things come to be, the current leading theory is known as hierarchica... |
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Width | 4,029 px |
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Height | 4,002 px |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 21 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CC 2017 (Windows) |
File change date and time | 14:34, 9 June 2017 |
Color space | Uncalibrated |