File:Cracking the Code of Faraway Worlds (an Exoplanet Atmosphere).jpg
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Summary
DescriptionCracking the Code of Faraway Worlds (an Exoplanet Atmosphere).jpg |
English: This infrared data from NASA's Spitzer Space Telescope called a spectrum tells astronomers that a distant gas planet, a so-called "hot Jupiter" called HD 209458b, might be smothered with high clouds. It is one of the first spectra of an alien world.
A spectrum is created when an instrument called a spectrograph spreads light from an object apart into a rainbow of different wavelengths. Patterns or ripples within the spectrum indicate the presence, or absence, of molecules making up the object. Astronomers using Spitzer's spectrograph were able to obtain infrared spectra for two so-called "transiting" hot-Jupiter planets using the "secondary eclipse" technique. In this method, the spectrograph first collects the combined infrared light from the planet plus its star, then, as the planet is eclipsed by the star, the infrared light of just the star. Subtracting the latter from the former reveals the planet's own rainbow of infrared colors. |
Date | |
Source | http://planetquest.jpl.nasa.gov/image/50 |
Author | NASA/JPL-Caltech/M. Swain (JPL) |
Licensing
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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5 June 2009
image/jpeg
d08db9079f19ca492d7a9168012e4b551103c436
1,691,027 byte
2,400 pixel
3,000 pixel
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:42, 27 January 2013 | 3,000 × 2,400 (1.61 MB) | Stas1995 | User created page with UploadWizard |
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Metadata
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Author | Spitzer Space Telescope |
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Copyright holder | http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml |
Image title |
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Short title |
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Credit/Provider | NASA/JPL-Caltech/M. Swain (JPL) |
Headline | This infrared data from NASA's Spitzer Space Telescope called a spectrum tells astronomers that a distant gas planet, a so-called"hot Jupiter"called HD 209458b, might be smothered with high clouds. It is one of the first spectra of an alien world. |
Source | Spitzer Space Telescope |
Date and time of data generation | 21 February 2007 |
Width | 3,000 px |
Height | 2,400 px |
Bits per component |
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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 | 14:53, 5 June 2009 |
Color space | sRGB |
Contact information |
http://www.spitzer.caltech.edu 1200 E. California Blvd. Pasadena, CA, 91125 USA |
Keywords | HD 209458b |
IIM version | 2 |