Coronal holes are regions where a gap occurs in the Sun's magnetic fields and allows the solar wind to escape. The wind stream coming out of this coronal hole recently moved past the NASA STEREO-A spacecraft with speeds exceeding 700 km/s. Similar speeds are expected when the current reaches Earth on January 4 and 5.
Arctic residents should expect G1-class geomagnetic storms and bright auroras are likely to be observed at night.
Days before
Scientists observed the largest explosion of gases on the surface of the Sun in three decades on Tuesday, shortly before 11:00 GMT (noon in Spain), causing a cloud of particles thirteen times larger than the Earth.
The burst, which launched the bubble towards the depths of the Solar System at more than 1.6 million kilometers per hour, had a brightness so strong that it exceeded the capabilities of some observation satellites, and horizontal reverberations appear in the images.
Possible effects
- Energy systems: Weak fluctuations in the electrical grid
- Space Zone: Less impact on the satellite operations.
- Others: The presence of the northern lights can be seen at high latitudes in the northern hemisphere, northern United States and Europe
Recommendations
- Turn off electronic and magnetic devices.
- If you see the northern lights, take shelter immediately.
Updated on: 05/01/2017 00:00:00
Source of Information: Centro de Predicción del Tiempo Espacial de EEUU
