NASA Solar Collage

Science shows its beauty: a collage of “good and light” appeared on the NASA website - 48 photographs of the Sun taken with the help of spectral cameras in the SDO and SOHO spacecraft-observatories. Frames represent various temperature layers. Pictures were taken in various color spectra to analyze the structure of the star.


In full size.

For observation, solar telescopes use information about the wavelength in two ways:
for the entire spectrum of radiation - allows you to imagine the overall temperature picture;
radiation at a certain frequency - allows you to monitor a specific layer of the atmosphere.

For example, the following solar structures (wavelengths in angstroms) are included in SDO observations:

• 4500: photosphere - the visible surface of the Sun.
• 1700: chromosphere - a more burning atmospheric layer located above the photosphere.
• 1600: transition region between the chromosphere and the corona.
• 304: Light emitted from the chromosphere and transition zone.
• 171: calm areas of the crown.
• 193: active regions of the crown
• 211: high temperature corona zones with increased magnetic activity.
• 335: also high-temperature zones of the corona with increased magnetic activity.
• 94: areas of the corona during solar flares.
• 131: The hottest substances at the time of a solar flare.

More details in the news itself .