Astronomical color images are more than just "Pretty Pictures", their content is astrophysically very informative. For many astronomical objects the spectral composition of the light gives the main insight to their physical nature. Stars for example offer their surface temperature with their colors. Nebulae emit in different colored emission lines, depending on their material composition and temperature. And so color images are helpful in understanding astrophysics, not only for educational purpose.
The following images are composed with at least three exposures through different color filters to one RGB (Red Green Blue) color image (Three Color Composites). Orion, the perseid meteor, and the image of the solar eclipse are conventional photographic color slides. In each page is a short text "From Colors to Astrophysics" about the meaning of the colors for this object.
The images are clickable to get the whole HTML-document with description and larger image size.
