Show HN: Spiral – continuous-thrust orbit-transfer design in the browser(github.com)

Transfer

Central body
EarthSun

Initial orbit radius (km)

From the body's center — Earth surface ≈ 6,371 km (LEO ≈ 6,778).

Target orbit radius (km)

Plane change Δi (deg)

Edelbaum combined altitude + inclination change.

Thrust (N)

Specific impulse Isp (s)

Initial mass (kg)

Trajectory

The real trajectory, integrated step by step. Green settles into a circular orbit; red means the thrust is too high to circularize and the orbit escapes.

Result

—Δv
—Transfer time
—Propellant
—Final mass
—Revolutions
—Initial accel