4 ms·

Eris is inclined 44 degrees. I think the highest inclination artificial satelite is Parker Solar Probe, about 3.4 degrees

• mturmon 6y ago
  Your comment jogged my memory. Ulysses, a cleverly-named solar-polar mission, used a deployment from the Shuttle, and a gravity assist from Jupiter, to reach an inclination of 80 degrees. From https://www.cosmos.esa.int/web/ulysses/the-ulysses-mission https://www.cosmos.esa.int/web/ulysses/the-ulysses-mission: > Because direct injection into a solar polar orbit from the Earth is not feasible, a gravity-assist is required to achieve a high-inclination orbit. As a result, Ulysses was launched at high speed towards Jupiter in October 1990, after being carried into low-Earth orbit by the space shuttle Discovery. Following the fly-by of Jupiter in February 1992 /3/, the spacecraft is now travelling in an elliptical, Sun-centred orbit inclined at 80.2 degrees to the solar equator.