File:CometBorrelly1002.jpg
CometBorrelly1002.jpg (600 × 600 pixels, file size: 643 KB, MIME type: image/jpeg)
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DescriptionCometBorrelly1002.jpg |
A composite of images from NASA's Deep Space 1 spacecraft shows features of comet Borrelly's nucleus, dust jets escaping the nucleus and the cloud-like "coma" of dust and gases surrounding the nucleus. False color is used to reveal details of the jets and coma. The images were taken when Deep Space 1 was about 4,800 kilometers (3,000 miles) from Borrelly during a Sept. 22, 2001, flyby. Borrelly's nucleus is about 8 kilometers (5 miles) from end to end, so the field of view is about 40 kilometers (25 miles) across. The Sun shines from the bottom of the image. The main dust jet, seen extending toward the bottom left, heads away from the comet in a direction that is about 30 degrees off the direction straight toward the Sun from the comet. The colors show about three orders of magnitude in the brightness of the dust jets and coma. Red indicates about one-tenth the brightness as the brightness of the nucleus, blue one-one-hundredth, purple one-one-thousandth. The red bumps near the nucleus indicate where the jet resolves into three distinct, narrow jets, which likely come from discrete source points on the surface. Deep Space 1 completed its primary mission testing ion propulsion and 11 other advanced, high-risk technologies in September 1999. NASA extended the mission, taking advantage of the ion propulsion and other systems to undertake this encounter with the comet. More information can be found on the Deep Space 1 home page. Deep Space 1 was launched Oct. 24, 1998, as part of NASA's New Millennium Program, which is managed by JPL for NASA's Office of Space Science, Washington, D.C. The California Institute of Technology manages JPL for NASA. |
Source | http://photojournal.jpl.nasa.gov/mission/DS1?start=0 |
Author | NASA/JPL-Caltech/UMD |
Permission (Reusing this file) |
Original work of NASA - public domain |
Public domainPublic domainfalsefalse |
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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:39, 13 December 2004 | 600 × 600 (643 KB) | Angeloleithold (talk | contribs) | CometBorrely{{PD-USGov-NASA}} |
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Orientation | Normal |
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Horizontal resolution | 1,024 dpi |
Vertical resolution | 1,024 dpi |
Software used | Adobe Photoshop 7.0 |
File change date and time | 08:26, 7 October 2002 |
Color space | Uncalibrated |