File:Artist's conception of Kepler-42.jpg
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Summary
[edit]DescriptionArtist's conception of Kepler-42.jpg |
English: Mini Planetary System
This artist's concept depicts an itsy bitsy planetary system -- so compact, in fact, that it's more like Jupiter and its moons than a star and its planets. Astronomers using data from NASA's Kepler mission and ground-based telescopes recently confirmed that the system, called Kepler-42 (formerly KOI-961), hosts the three smallest exoplanets known so far to orbit a star other than our sun. An exoplanet is a planet that resides outside of our solar system. The star, which is located about 130 light-years away in the Cygnus constellation, is what's called a red dwarf. It's one-sixth the size of the sun, or just 70 percent bigger than Jupiter. The star is also cooler than our sun, and gives off more red light than yellow. The smallest of the three planets, called Kepler-42d (Formerly KOI-961.03), is actually located the farthest from the star, and is pictured in the foreground. This planet is about the same size as Mars, with a radius only 0.57 times that of Earth. The next planet to the upper right is Kepler-42b (formerly KOI-961.01), which is 0.78 times the radius of Earth. The planet closest to the star is Kepler-42c (formerly KOI-961.02), with a radius 0.73 times the Earth's. All three planets whip around the star in less than two days, with the closest planet taking less than half a day. Their close proximity to the star also means they are scorching hot, with temperatures ranging from 350 to 836 degrees Fahrenheit (176 to 447 degrees Celsius). The star's habitable zone, or the region where liquid water could exist, is located far beyond the planets. The ground-based observations contributing to these discoveries were made with the Palomar Observatory, near San Diego, Calif., and the W.M. Keck Observatory atop Mauna Kea in Hawaii. |
Date | |
Source | http://www.nasa.gov/mission_pages/kepler/multimedia/images/mini-planetary-system.html |
Author | NASA/JPL-Caltech |
Licensing
[edit]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 | 19:47, 15 April 2017 | 4,268 × 2,400 (1.49 MB) | Karl432 (talk | contribs) | Color corrected. Instead of a strange pink, the star now shines in a RGB value appropriate for a 3100K black body. | |
13:26, 19 January 2012 | 4,268 × 2,400 (3.21 MB) | החבלן (talk | contribs) | Full-size image from source | ||
00:46, 12 January 2012 | 946 × 710 (70 KB) | החבלן (talk | contribs) |
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Width | 4,268 px |
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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 CS5 Windows |
File change date and time | 13:57, 5 January 2012 |
Color space | Uncalibrated |
Date and time of digitizing | 06:43, 4 January 2012 |
Date metadata was last modified | 05:57, 5 January 2012 |
Unique ID of original document | xmp.did:81C519F9E737E111B8D9C0936BBFFFCB |
IIM version | 11,200 |