X-ray emission (purple) fills the inner shell of the Cat`s Eye Nebula, a planetary nebula in the constellation of Draco, as shown by this composite X-ray and optical image. (X-ray: NASA/UIUC/Y.Chu et al., Optical: NASA/HST) ...
A light source positioned behind the subject, often obscuring and creating a sense of menace.
a light displaying an indication in the opposite direction to that of the main unit
A light source that illuminates translucent material from behind.
Light from behind the actor or a piece of scenery. It is highly sculptural light which separates the actor from the background.
In receivers, a display may be lit from the rear to create better visibility under a wide range of a
In the three-point lighting system, the source of illumination placed behind and above the actor. It