Image: Sun for the year

Image: Sun for the year

This montage was created on the basis of 365 images showing the change in the activity of our star. Photos taken by Proba-2 satellite during 2017. You can also consider a partial eclipse.

For shooting, a SWAP camera operating on extreme ultraviolet waves was used to capture the solar turbulent atmosphere (corona) when heated to a million degrees.

In 2017, there was a minimum of 11-year solar activity (when the number of active areas decreases), which caused the coronal holes to appear even larger and darker. Take a closer look and notice that some of the images are different. About a week in late April / early May, the sun is not concentrated in sight. This is intended to indicate fuzzy observations in studying the extended atmosphere.

Of course, the main event of the last year was a total solar eclipse on August 21, which was a shadow across America.

Proba-2 is located at an altitude of 800 km above the Earth. During operation, the satellite crossed the moon several times and observed three partial eclipses.

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