Solar & Heliospheric Observatory

Rayana Thompson & Windell Barfield

SOHO

• December 2, 1995

• UV & Magnetic Optical Information

• Eight Instruments

Important Instruments• EIT– Extreme Ultraviolet Imaging

Telescope

• ERNE– Energetic & Relavistic Nuclei & Electron Experiment

• GOLF– Global Oscillatious at Low Frequencies

Functions of Important Instruments

• EIT– studies the low coronal structure and activity

• ERNE – studies the ion and electron composition of the solar wind

• GOLF -- measures velocity variations of the whole solar disk to explore the core of the sun

SOHO

Images taken with EIT at different wavelengths from 24 April 2014. The device is sensitive to these four wavelengths. EIT is

built as a single telescope with a quadrant structure to the entrance mirrors: each quadrant reflects a different colour of

EUV light, and the wavelength to be observed is selected by a shutter that blocks light from all but the desired quadrant of the

main telescope.

http://sohowww.nascom.nasa.gov/data/realtime/soho/soho_fader.html

Real-Time SOHO Images