The Sun, photographed at X-ray wavelengths by Skylab, 1973.
3 5 c m
40cm
actual image size: 32cm x 27cm

The Sun, photographed at X-ray wavelengths by Skylab, 1973.

© National Aeronautics & Space Administration / Science & Society

Description

Skylab, America's first space station launched on 14th May 1973, carried the Apollo Telescope Mount which contained eight instruments to study the sun at various wavelengths. The corona, the outer area of the Sun's atmosphere, is very hot, with temperatures of a million degrees Kelvin, and is a powerful emitter of X-rays. X-ray astronomy is useful for observing variations in the structure of the corona, which changes according to the solar activity cycle. The brighter areas are emitting more X-rays than the surrounding darker regions. They are solar flares, or prominences, sudden outbursts of energy from the Sun's surface which reach into the corona. Flares occur near sunspots on boundaries dividing areas with opposite magnetic fields.
 

Image Ref.

10299242
 

buy a print

Select size
 
Select finish
 
How many prints?
 
£20.00
 

buy a framed print

buy a canvas

buy a framed canvas