An ionoplanet is a type of ionoplanet that has a very strong magnetic field and is located around a highly radioactive celestial body such as a neutron star, a black hole, or a cataclysmic variable stars. The radiation from the celestial body clashing with the intense planetary magnetic field causes the planet to have a hyperactive ionosphere in its polar regions, giving it light and energy in place of a brighter sun, and protection from radiation. This unique property of ionoplanet makes them one of the only types of planets that can potentially inhabit most forms of like around a highly radioactive star such as a neutron star or even a black hole. Ionoplanets also must have atmospheres; denser atmospheres create a more active ionosphere when compounded with a powerful magnetic field.
An ionoplanet would have several different characteristics that would make it unique from a typical planet; only its magnetic polar regions would habitable, due to the increased ion density of the ionosphere in the poles. The equatorial regions of an ionoplanet are essentially mostly dark and cold, unless other phenomena change this, such as changes in the planet's magnetic core or the presence of other planetary phenomena such as tidal heating. The equatorial regions would be more vulnerable to radiation as well.
From the ground on the polar relgions, it would look like the entire sky is a blazing array of colors, like aurora borealis was the entire sky. This is what acts as the sun in an ionoplanet, allowing life to potentially exist. There is no day/night cycle, and space beyond the ionosphere is barely visible. The sky's light would dim as you approach the equator until it was mostly black. The colors of the ionosphere would depend on the atmospheric composition of the planet; in ionoplanets with an earth-like atmosphere, common colors would be green, pink, blue, violet, and sometimes red. As a result of the different colors, plants on these worlds may tend towards warmer colors such as orange or red, and plants that live on the edges of the polar regions may be darker in order to absorb more light.
Changes in an ionoplanet's magnetic sphere may be deadly for any life on the planet, depending on the magnetic event. Over the course of thousands of years, magnetic poles can shift in different directions, forcing life to migrate and adapt over time. A more devestating event like the magnetic poles reversing could take thousands of years, but could still cause mass extinctions.