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Category: SUVI

Solar Wind reaches Earth

The Solar Ultraviolet Imager (SUVI) on GOES satellites revealed an equatorial coronal hole directed towards Earth on the 11th and 12th of December.  Coronal holes appear as dark areas in the extreme ultraviolet, or the 195 Angstroms band on SUVI. They appear dark because they are cooler and less dense regions... Read More

Partial Solar Eclipse from Geostationary Orbit

The Solar Ultraviolet Imager (SUVI) on GOES East captured a partial solar eclipse during the new moon on November 13th. But the moon’s shadow didn’t reach Earth. Why’s that?Solar eclipses are only possible when the new moon occurs near the nodes of the lunar orbit, which is where the... Read More