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From Satellites:

Satellites have the advantage of being above the clouds and outside Earth's atmosphere. You will be able to get images of the Sun from the NASA SOHO (Solar and Heliospheric Observatory) satellite which is in an orbit that places it one million miles from Earth and that keeps the satellite between the Earth and Sun at all times. You can use these images to compare with your own observations or with images from one of the professional ground-based telescopes. These satellite images are essential when weather conditions do not permit ground observation. In addition the SOHO satellite uses filters that allow you observe different features on the Sun. This additional information can help you to predict which sunspots are more likely to produce solar storms.

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