Solar Orbiter Reveals Sun’s Surface in Unprecedented Detail

Dragon

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Post n°1

Solar Orbiter Reveals Sun’s Surface in Unprecedented Detail

Post by Dragon Sat May 07, 2022 2:12 am

One of the new images, taken by the Extreme Ultraviolet Imager (EUI) aboard the ESA/NASA Solar Orbiter spacecraft on March 7, 2022, is the highest resolution image of the Sun’s full disk and its outer atmosphere, the corona, ever taken.

Another image, taken by Solar Orbiter’s Spectral Imaging of the Coronal Environment (SPICE) instrument, represents the first full Sun image of its kind in 50 years, and by far the best one, taken at the Lyman-beta wavelength of ultraviolet light that is emitted by hydrogen gas.

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Solar Orbiter Reveals Sun’s Surface in Unprecedented Detail 334pu7m

Dragon

Dragon: Senior Administrator; Posts : 10709
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Post n°2

Re: Solar Orbiter Reveals Sun’s Surface in Unprecedented Detail

Post by Dragon Sat May 07, 2022 2:13 am

Solar Orbiter Reveals Sun’s Surface in Unprecedented Detail Image_10779_1-Solar-Orbiter

Image credit: ESA / NASA / Solar Orbiter / EUI Team / E. Kraaikamp, ROB.

The Sun as seen by Solar Orbiter in extreme ultraviolet light from a distance of roughly 75 million km.

The image is a mosaic of 25 individual images taken on March 7, 2022 by the high resolution telescope of the Extreme Ultraviolet Imager (EUI) instrument.

Taken at a wavelength of 17 nanometers, in the extreme ultraviolet region of the electromagnetic spectrum, this image reveals the Sun’s upper atmosphere, the corona, which has a temperature of around a million degrees Celsius.

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Solar Orbiter Reveals Sun’s Surface in Unprecedented Detail 334pu7m

Dragon

Dragon: Senior Administrator; Posts : 10709
Points : 31671
Times User Thanked: : 1256
Join date : 2018-01-18

Post n°3

Re: Solar Orbiter Reveals Sun’s Surface in Unprecedented Detail

Post by Dragon Sat May 07, 2022 2:15 am

Solar Orbiter Reveals Sun’s Surface in Unprecedented Detail Image_10779_2-Solar-Orbiter

Image credit: ESA / NASA / Solar Orbiter / SPICE Team / G. Pelouze, IAS.

Solar Orbiter took images of the Sun on March 7, 2022 from a distance of roughly 75 million km, using its Spectral Imaging of the Coronal Environment (SPICE) instrument.

SPICE takes simultaneous spectral images at several different wavelengths of the extreme ultraviolet spectrum by scanning its spectrometer slit across a region on the Sun.

The different wavelengths recorded correspond to different layers in the Sun’s lower atmosphere.

Purple corresponds to hydrogen gas at a temperature of 10,000 degrees Celsius, blue to carbon at 32,000 degrees Celsius, green to oxygen at 320,000 degrees Celsius, yellow to neon at 630,000 degrees Celsius.

Each full-Sun image is made up of a mosaic of 25 individual scans.

It represents the best full Sun image taken at the Lyman beta wavelength of ultraviolet light that is emitted by hydrogen gas.

Source

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Solar Orbiter Reveals Sun’s Surface in Unprecedented Detail 334pu7m