File:Caldwell 65 - 2.jpg
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[edit]DescriptionCaldwell 65 - 2.jpg |
English: Caldwell 65 is a stunning spiral galaxy located around 10 million light-years from Earth. It has a disk-like appearance since we see it almost edge-on, which has led some to nickname it the Silver Coin or Silver Dollar galaxy. Most people, however, call it the Sculptor galaxy after the constellation it resides in. This galaxy is one of the nearest beyond our local neighborhood of galaxies, making it an ideal target for professional and amateur astronomers alike.
Dark dust clouds and scattered massive stars obscure much of the Sculptor galaxy’s detail, which is why Hubble imaged it in both visible and infrared light with its Advanced Camera for Surveys (ACS). Infrared observations allow us to peer through the shrouds of dust, revealing details that are otherwise hidden from view. Thanks to Hubble’s observations, scientists have discovered that all of the dust in the Sculptor galaxy is accompanied by frantic star formation, earning it the designation of a starburst galaxy. This Hubble image shows about half of the galaxy. Hubble studied the Sculptor galaxy as part of a detailed survey called the ACS Nearby Galaxy Survey Treasury (ANGST) program, which resolved roughly 14 million stars in 69 galaxies. The survey explored galaxies in a region called the Local Volume, ranging in distance from 6.5 million to 13 million light-years from Earth. Hubble’s observations provided insight into the masses, structures, environments and star-formation histories of these galaxies. Also cataloged as NGC 253, the Sculptor galaxy was discovered in 1783 by British astronomer Caroline Herschel while she was hunting for comets. With a magnitude of 7.6, this large galaxy is quite a sight even in small telescopes. It is best seen during the spring in the Southern Hemisphere. From the Northern Hemisphere, it appears low in the southern sky in the autumn. For more information about Hubble’s observations of Caldwell 65, see: hubblesite.org/image/2414 hubblesite.org/contents/news-releases/1998/news-1998-42.html hubblesite.org/contents/news-releases/1995/news-1995-10.html Credit: NASA, ESA, J. Dalcanton and B. Williams (University of Washington), T.A. Rector/University of Alaska Anchorage, T. Abbott and NOAO/AURA/NSF For Hubble's Caldwell catalog site and information on how to find these objects in the night sky, visit: www.nasa.gov/content/goddard/hubble-s-caldwell-catalog |
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Source | https://www.flickr.com/photos/144614754@N02/49211184388/ |
Author | NASA Hubble |
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This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/49211184388 (archive). It was reviewed on 23 February 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
23 February 2020
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current | 20:03, 23 February 2020 | ![]() | 15,135 × 3,849 (50.54 MB) | Killarnee (talk | contribs) | User created page with UploadWizard |
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Orientation | Normal |
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Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS3 Macintosh |
File change date and time | 10:51, 26 September 2008 |
Y and C positioning | Centered |
Exif version | 2.31 |
Date and time of digitizing | 10:51, 26 September 2008 |
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Supported Flashpix version | 1 |
Color space | Uncalibrated |
Image width | 15,135 px |
Image height | 3,849 px |
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Height | 3,849 px |
Width | 15,135 px |
Pixel composition | RGB |
Number of components | 3 |
Date metadata was last modified | 06:51, 26 September 2008 |