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Content Provider | AstroPix |
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Description | This artist's concept illustrates what the night sky might look like from a hypothetical alien planet in a star system with an asteroid belt 25 times as massive as the one in our own solar system.NASA's Spitzer Space Telescope found evidence for such a belt around the nearby star called HD 69830, when its infrared eyes spotted dust, presumably from asteroids banging together. The telescope did not find any evidence for a planet in the system, but astronomers speculate one or more may be present.In our solar system, anybody observing the skies on a moonless night far from city lights can see the sunlight that is scattered by dust in our asteroid belt. Called zodiacal light and sometimes the "false dawn," this light appears as a dim band stretching up from the horizon when the Sun is about to rise or set. The light is faint enough that the disk of our Milky Way galaxy remains the most prominent feature in the sky. In contrast, the zodiacal light in the HD 69830 system would be 1,000 times brighter than our own, outshining even the Milky Way. |
File Format | TIF / TIFF |
Language | English |
Publisher | Spitzer Science Center |
Publisher Date | 2012-03-22 |
Access Restriction | Open |
Use Rights URL | http://www.spitzer.caltech.edu/info/18-Image-Use-Policy |
Subject Keyword | Planet Terrestrial Galaxy Giant Zodiacal Light Sky Phenomenon Night Sky |
Content Type | Image |
Educational Role | Student Teacher |
Educational Use | Self Learning Classroom |
Education Level | Any Level/Generic |
Resource Type | Photograph |
Subject | Physics Solar System |
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