1. National Solar Observatory Godwin, Cole

2. Instrumentation and Facilities Dunn Solar Telescope (Sacramento Peak) Solar adaptive optics and high-resolution technology McMath-Pierce Solar Telescope (Kitt Peak) Largest unobstructed optical telescope Panchromic and flux-detecting capabilities

3. Global Oscillation Network Group Studies helioseismology of the sun Consists of six stations encircling Earth Measures 5-min oscillations of the Sun

4. GONG Images Photosphere Intensity H-Alpha Imaging

5. SOLIS Telescope Synoptic Optical Long-term Investigations of the Sun Study of: Solar Cycles Energy Releases Solar irradiance

6. SOLIS Imaging Equivalent Width Chromosphere Longitudinal Mag Photosphere