File:Serpens south.jpg
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[edit]DescriptionSerpens south.jpg |
English: Human families may be bonded by blood, but stellar families are united by gravity. A family of stars, or star cluster, can contain hundreds or thousands of members. In this image, NASA's Spitzer Space Telescope spots the Serpens South star cluster, which consists of a relatively dense group of 50 young stars -- 35 of which are protostars, or stellar infants, that are just beginning to form.
Stellar members of Serpens South star cluster can be seen as the green, yellow, and orange tinted specks sitting atop the black dust lane running down the center of the image. Like raindrops, stars form when thick patches of cosmic clouds condense. Tints of green in the image represent hot hydrogen gas excited when high-speed jets of gas ejected by infant stars collide with the cool gas in the surrounding cloud. Wisps of red in the background are organic molecules called polycyclic aromatic hydrocarbons (PAHs), which are being excited by stellar radiation from a neighboring star-forming region located to the east of this image, called W40. On Earth PAHs are found on charred barbeque grills and in the sooty automobile exhaust. This Spitzer picture is composed of three images taken with the telescope's Infrared Array Camera (IRAC) at 3.6 (blue), 4.5 (green), and 5.8 (red) microns. The cluster was observed by a team of scientist led by Dr. Robert Gutermuth, of the Harvard-Smithsonian Center for Astrophysics. The observation was part of a larger project called the Gould's Belt Legacy Survey. |
Date | Taken on 27 October 2006; Released: 8 August 2007 |
Source | http://ipac.jpl.nasa.gov/media_images/sig07-014.jpg; see also http://www.spitzer.caltech.edu/images/2120-sig07-014-Stellar-Families-Young-Stars-in-Serpens |
Author | NASA/JPL-Caltech/L. Allen (Harvard-Smithsonian CfA) & Gould's Belt Legacy Team |
Permission (Reusing this file) |
http://www.spitzer.caltech.edu/info/18-Image-Use-Policy |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 13:14, 14 August 2007 | 1,410 × 2,014 (2.24 MB) | Viktorhauk (talk | contribs) | A cluster of new stars are forming in the Serpens South - the southern part of the Serpens cloud. Courtesy of NASA / JPL. | |
10:45, 14 August 2007 | 315 × 450 (174 KB) | Viktorhauk (talk | contribs) | A cluster of new stars are forming in the Serpens South - the southern part of the Serpens cloud. Unless otherwise noted, images and video on Spitzer public web sites (public sites ending with a spitzer.caltech.edu address) may be used for any purpose wit |
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Width | 1,410 px |
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Height | 2,014 px |
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS3 Macintosh |
File change date and time | 10:22, 8 August 2007 |
Color space | Uncalibrated |