Word: violet
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Dates: during 1960-1969
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After 11 months in orbit, a satellite telescope designed here has mapped 7 per cent of the sky and is still sending back new information on ultra-violet light from distant stars. Analysis of data already received from the satellite has yielded several results...
...telescope cameras have sent back nearly 5000 ultraviolet pictures, primarily photographing the stars lying in the plane of the Milky Way. A satellite was necessary to obtain these pictures because the earth's atmosphere blocks most types of ultra-violet light and makes ground observations in ultra-violet wave-lengths impossible...
...satellite's cameras have photographed star clusters, especially the Orion and Pleides star associations. Ultra-violet pictures were taken of the moon, but they showed nothing surprising, Davis said...
...ordinary satellite takes the same type of data continuously," said Martin S. Huber, a Research Associate who calibrated the experiment. "But we have a real observatory with an almost infinite number of observation possibilities." The telescope can view the sun in one of 10,000 different wavelengths of ultra-violet light and can aim at a single point, take a picture of the entire sun, or scan an area only 1/15 the size of the sun's visible disc. Where earlier OSO satellites were able to take only one picture of the entire surface every 5 minutes, this telescope...
...sounding rocket called the Acrobee 150 was launched on September 11 to measure a section of the sun's ultra-violet spectrum very close to the region measured by OSO-VI. The rocket's readings actually overlapped OSO's in one small region, and the two instruments thus double-checked each other's operation. After four minutes of observation above White Sands, New Mexico, the rocket parachuted back to earth. "It was recovered so well that to a casual glance, you could not really be sure it had been launched," Parkinson said. The rocket will be repaired and flown again...