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The Future of Io Exploration
The Future of Io Exploration

... Lava composition (no spectra of fresh lava, only lower limits to magma temperatures) Eruption volumes (flow thicknesses not well constrained) Time evolution of the magma output (insufficient time coverage, inadequate mid-IR capability for mapping old warm flows) • Gas and pyroclastic composition of ...
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... collect  on  a  day  to  day  basis  is  from  the  visible  light  part  of  the  spectrum.  Most  light   sources  give  out  pure  white  light,  but  white  light  is  made  up  of  three  different  colors,   red,  green  a ...
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... from index of refraction formula • We can measure in visible (where we have better high speed, low noise detectors) and assume distortion is the same in the infrared (where it is easier to correct). • 1.6 °C temp difference at the summit causes change of 1 part in million in index of refraction. ...
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... inner Solar System. When disturbed - perhaps by the gravity of a nearby star - a comet may fall toward the Sun. As a comet approaches the Sun, rocks, icechunks, gas, and dust boil away, sometimes creating impressive looking tails. In fact, debris from Comet Swift-Tuttle is responsible for the Persei ...
The Doppler Effect - RanelaghALevelPhysics
The Doppler Effect - RanelaghALevelPhysics

... ∆λ - change in wavelength (m) λ - original wavelength (m) v - speed of object (m/s) c - speed of light (m/s) ...
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International Ultraviolet Explorer



The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.
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