Example image of eyePlorer eyePlorer map for 'Elongation (astronomy)': Elongation Astronomy Earth Sun Inferior and superior planets Mercury (planet) Venus Angular velocity Orbital period Frequency Coplanarity Dwarf planet Conjunction (astronomy and astrology) Heliocentrism Opposition (planets) Ecliptic coordinate system Pluto Apparent magnitude Mars Jupiter Naked eye Uranus 4 Vesta Asteroid belt Binoculars Ceres (dwarf planet) Aspects of Venus Filter (optics) Phases of Venus NEODyS 3 Juno Classical planet Orbit of the Moon Spherical astronomy Extraterrestrial skies Vulcan (hypothetical planet) Dennis Rawlins 2 Pallas Astronomy on Mars Saturn