plane, center, nuclei, clusters, system, rays, disk, centre, rotation, latitude, halo, nebulae, nucleus, latitudes, evolution, field, sources, equator, longitude, structure, radiation, cluster, coordinates, pole, systems, stars, bulge, noise, scale, emission, core, poles, space, fields, objects, region, regions, winds, disks, distribution, halos, origin, circle, disc, mass, dynamics, civilization, empire, wind, model, clouds, longitudes, background, matter, scales, astronomy, gas, models, distances, concentration, cepheids, polity, arms, component, absorption, flux, light, empires, source, dust, centers, zone, nebula, spectrum, novae, potential, orbits, corona, hemisphere, particles, neighborhood, dimensions, civilizations, orbit, masses, formation, universe, radius, cloud, components, extinction, arm

extra, inter, pan, high, non, mid, low, new, active, select