Example image of eyePlorer eyePlorer map for 'Parallax': Astronomy Solar System Star Hipparcos Cosmic distance ladder Binoculars Microscope Twin-lens reflex camera Depth perception Eye Stereopsis Visual perception Angle Distance Geometry Measurement Light-year Minute of arc Parsec Year 61 Cygni Friedrich Bessel Heliometer Radar Subtended angle Heliocentrism Proper motion Milky Way European Space Agency Gaia mission Triangulation Multiplicative inverse Orbit of the Moon Astronomical Almanac Lunar theory Moon Aristarchus of Samos Hipparchus Ptolemy From the Earth to the Moon Jules Verne Nicolaus Copernicus Astronomical unit Age of the universe Aristarchus On the Sizes and Distances Lunar phase Transit of Venus Edmond Halley Black drop effect 433 Eros