Astronomy Picture of the Day ·
An Active Sunspot Viewed Sideways
The Astronomy Picture of the Day for April 2, 2007 is “An Active Sunspot Viewed Sideways,” an image. The picture is copyrighted by its creator (Credit & Copyright: Hinode , JAXA , NASA). The original explanation runs about 141 words.
From the explanation
“Why are there dark spots on the sun? Although noted for thousands of years, sunspots have been known for decades to be regions of the Sun that are slightly depressed and cooled by the Sun’s complex and changing magnetic field .”
— APOD editors, April 2, 2007
Read the full explanation on science.nasa.gov
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At a glance
- Date
- April 2, 2007
- Type
- Image
- Credit
- Credit & Copyright: Hinode , JAXA , NASA
- Copyright
- Copyrighted by the credited creator. Ask the copyright holder before reusing it.
- Explanation length
- About 141 words