Astronomy Picture of the Day ·
Solar Shock Wave
The Astronomy Picture of the Day for April 30, 1999 is “Solar Shock Wave,” an image. It is credited to Credit: Barry Reynolds (Perth, Australia) and the SOHO – EIT Consortium. The original explanation runs about 171 words.
From the explanation
“On September 24, 1997 a shock wave blasted across the surface of the sun at speeds of 250 to 600 kilometers per second . On planet Earth, observer Barry Reynolds photographed the expanding shock front (left) in the light emitted by hydrogen atoms at the solar surface.”
— APOD editors, April 30, 1999
Read the full explanation on science.nasa.gov
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At a glance
- Date
- April 30, 1999
- Type
- Image
- Credit
- Credit: Barry Reynolds (Perth, Australia) and the SOHO – EIT Consortium
- Copyright
- No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
- Explanation length
- About 171 words