Solar wind on April 21, 2025

April 21, 2025

UTC+00 change region

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Solar wind parameters

Solar wind speed

592 km/s increased (average for 24 hours)

Solar wind speed for April 20 and 21, 2025, according to data from the ACE spacecraft Solar wind speed for April 20 and 21, 2025.

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Solar wind density

3.7 cm^-3 normal (average for 24 hours)

Solar wind density for April 20 and 21, 2025, according to data from the ACE spacecraft Solar wind density for April 20 and 21, 2025.

PNG API: JSON | TXT

Solar wind temperature

348 000 K high (average for 24 hours)

Solar wind temperature for April 20 and 21, 2025, according to data from the ACE spacecraft Solar wind temperature for April 20 and 21, 2025.

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Solar wind magnetic field induction

12.8 nT increased (average for 24 hours)

Solar wind magnetic field induction for April 20 and 21, 2025, according to data from the ACE spacecraft Solar wind magnetic field induction for April 20 and 21, 2025.

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The Bz component of the solar wind magnetic field

−0.1 nT negative (average for 24 hours)

The Bz component of the solar wind magnetic field for April 20 and 21, 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 April 20 and 21, 2025.

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