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Solar wind — December 12, 2025

December 12, 2025
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Solar wind parameters

Solar wind speed

440 km/s normal (average for 24 hours)
Solar wind speed for December 11 and 12, 2025, according to data from the ACE spacecraft Solar wind speed for December 11 and 12, 2025.
Solar wind speed
PNG API: JSON | TXT

Solar wind density

6 cm-3 increased (average for 24 hours)
Solar wind density for December 11 and 12, 2025, according to data from the ACE spacecraft Solar wind density for December 11 and 12, 2025.
Solar wind density
PNG API: JSON | TXT

Solar wind temperature

89 000 K normal (average for 24 hours)
Solar wind temperature for December 11 and 12, 2025, according to data from the ACE spacecraft Solar wind temperature for December 11 and 12, 2025.
Solar wind temperature
PNG API: JSON | TXT

Solar wind magnetic field induction

11.5 nT increased (average for 24 hours)
Solar wind magnetic field induction for December 11 and 12, 2025, according to data from the ACE spacecraft Solar wind magnetic field induction for December 11 and 12, 2025.
Solar wind magnetic field induction
PNG API: JSON | TXT

The Bz component of the solar wind magnetic field

−2.3 nT negative (average for 24 hours)
The Bz component of the solar wind magnetic field for December 11 and 12, 2025, according to data from the ACE spacecraft. A negative, blue Bz value (southern direction of the field) promotes the development of magnetic storms and northern lights. The Bz component of the solar wind magnetic field for December 11 and 12, 2025.
The Bz component of the solar wind magnetic field
PNG API: JSON | TXT