Boundary at which solar-wind dynamic pressure balances geomagnetic pressure, ρ v² ≈ B²/(2μ₀). Standoff distance contracts during solar storms (sub-6 R_E during severe events).
Boundary at which solar-wind dynamic pressure balances geomagnetic pressure, ρ v² ≈ B²/(2μ₀). Standoff distance contracts during solar storms (sub-6 R_E during severe events).