1 year ago

#WomenInSTEM #exoplanets #JamesWebbTelescope
Capturing solar activity between August 12 and December 22, 2022, as documented by NASA's Solar Dynamics Observatory (SDO), this time-lapse video provides an engaging visual journey. Positioned in space around Earth, SDO has consistently recorded the Sun in impressive 4K x 4K resolution for almost 13 years. This ongoing data collection has yielded numerous groundbreaking insights into the Sun's mechanics and its impacts on our solar system.

Equipped with a trio of instruments, SDO captures an image of the Sun every 0.75 seconds. The Atmospheric Imaging Assembly (AIA) instrument, specifically, captures images at ten distinct wavelengths of light every 12 seconds. This 133-day compilation offers a glimpse of images snapped at the 17.1-nanometer wavelength, which showcases the Sun's outermost atmospheric layer: the corona.

Compressing images taken at 108-second intervals, the video encapsulates 133 days or approximately four months of solar observations into a 59-minute visual spectacle. The footage portrays vivid active regions traversing the Sun's surface during its rotation, as the Sun completes a rotation roughly once every 27 days.

Prominent in the imagery are magnetic fields, appearing as looping structures extending above the luminous areas. These magnetic fields entrapped searing, luminous plasma and constitute the source of solar flares, which manifest as intense flashes during magnetic reconnection.

Although SDO consistently monitors the Sun, there have been instances it missed. Some of the shadowed frames result from Earth or the Moon passing between SDO and the Sun, causing momentary eclipses. Other dark moments stem from equipment downtime or data anomalies.

Transmitting a staggering 1.4 terabytes of data daily, SDO remains a vigilant observer of the Sun. The off-center Sun images correspond to instances when SDO's instruments were calibrating.

Both SDO and other NASA missions will persist in observing our Sun, yielding further insights about our cosmic context and essential information to safeguard our astronauts and assets. Accompanied by Lars Leonhard's "Geometric Shapes" album, the music enhances the viewing experience.
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#sun #lifeonsun #light