DECLINATION — Geomagnetic Observatory 1, a Planet's Field Mid-Reversal
DECLINATION — a planet's magnetic field mid-reversal, as the instrument. Several hundred field lines traced live around a small dark disc; six magnetic poles where there were two; the dipole at 18%; Verrimouth's compass has moved 14.1° since the spring tables, 437 ships are at sea, and the advisory has never been issued. A cinematic FUI scene from SCENESCAPES Channel 64.
POLE-PIERCE POINTS · 6 · H = 0 · KM = LAST FIT · σ 150
|B| AT FOOTPOINT · NT · LOG
3,80062,000
N-TYPE POLE · FIELD IN
S-TYPE POLE · FIELD OUT
FIT ELLIPSE · 1 σ 150 KM · ×4
TICKS · SKY-PLANE B · 20–4,000 NT
AURORA · OVAL L 1.89 · CURTAIN
PIN · Δ SINCE SPRING
SOLVE PLATE — field lines of the degree-3 internal model plus six flux patches, traced by RK4 from 320 footpoints weighted by outward radial flux; brightness ∝ log |B| at the footpoint; lines fade beyond 3.4 R and end at 6.2 R; ticks: the field in the plane of the sky. Aurora: the dipole shell L = 1.89 (the plasma sheet's inner edge) in geomagnetic coordinates. Rings: 2, 3, 4 R in the plane of the sky. R = 5,960 km.