The Red Rectangle is a protoplanetary nebula located in the constellation Monoceros at a distance of roughly 2,300 light years. It represents a brief transitional phase in stellar evolution, when a Sun like star has left the asymptotic giant branch but has not yet formed a fully developed planetary nebula. At its center lies a close binary system embedded within a dense, edge on disk of dust and gas. Radiation and stellar winds from this system are funneled into two opposing outflows, producing the sharply defined, X shaped geometry that gives the object its distinctive name.
The striking red color arises from complex carbon rich molecules and dust grains that fluoresce under intense ultraviolet radiation from the central stars. Viewed from Earth, the bipolar cones are intersected by our line of sight and partially obscured by the dusty disk, creating the illusion of a rigid geometric structure suspended in space.
The Red Rectangle is a protoplanetary nebula located in the constellation Monoceros at a distance of roughly 2,300 light years. It represents a brief transitional phase in stellar evolution, when a Sun like star has left the asymptotic giant branch but has not yet formed a fully developed planetary nebula. At its center lies a close binary system embedded within a dense, edge on disk of dust and gas. Radiation and stellar winds from this system are funneled into two opposing outflows, producing the sharply defined, X shaped geometry that gives the object its distinctive name.
The striking red color arises from complex carbon rich molecules and dust grains that fluoresce under intense ultraviolet radiation from the central stars. Viewed from Earth, the bipolar cones are intersected by our line of sight and partially obscured by the dusty disk, creating the illusion of a rigid geometric structure suspended in space.