Astronomers showed the time lapse of the Sun’s rotation for 10 years

Astronomers have published a time lapse of rotation of the Sun, covering ten years of observations with the help of space Observatory SDO. In the video you can watch solar flares and changes in its activity, the transits of the planets in his disk, and eclipses, it is reported on the website NASA.

Space Observatory SDO (Solar Dynamics Observatory) was launched into space on 11 February 2010. Initially, its service life was estimated at five years, but the Observatory is still conducting active surveillance, being on a circular geosynchronous orbit. By using three scientific instruments SDO monitors the Sun simultaneously at 12 different wavelengths, allowing to study the outer layers of the star, its activity and solar-terrestrial relations.

24 June 2020 astronomers working with the Observatory, has published a time lapse of rotation of the Sun, covering ten years of observation of him. It was assembled from images that the AIA instrument (Atmospheric Imaging Assembly) were obtained every 12 seconds, taking observations at a wavelength of 17.1 nanometers.

Dark frames in the video caused by the fact that the Earth or the Moon was eclipsed by the Sun, appearing between him and the Observatory. The moments when the Sun is not the center of the frame, relate to the period calibration of scientific instruments and the absence of data in 2016 caused by a failure in the instrument AIA.

In 13 minutes you can see the transit of Venus across the disk of the Sun, held in 2012, and in the 37th and 58th minutes of the passage of mercury over the solar disk. In addition, 7-th, 14-th, 21-th and 45-th minute in the video you can observe the powerful flares that took place on our star.

Earlier we talked about how the Observatory SDO saw the movement of the moon around, and SOHO has opened its chetyrehtysyachnuyu the comet.

Alexander Voytyuk

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