July 14, 2006
The universe has spent billions of years making things that shine. On your birthday, we celebrate one of its quieter masterpieces.
The Colorful Clouds of Rho Ophiuchi
Birthday · July 14, 2006
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APOD published July 14, 2006. Credit: Jim Misti and Steve Mazlin, (acquisition), Robert Gendler (processing). A publication-date match, not a photo taken on your date. Independent of NASA.
This stunning mosiac of the sky around bright stars Antares (Alpha Scorpii) and Rho Ophiuchi reveals spectacular colors in a cosmic starscape. Near the top, Rho Ophiuchi and nearby stars are immersed in blue reflection nebulae - dust clouds that shine primarily by reflected starlight. Cool supergiant star Antares (lower left) is itself shedding the material that reflects the evolved star's yellowish hue. Characteristic of star forming regions, the telltale red emission from hydrogen gas also permeates the view along with dark, obscuring dust clouds seen in silhouette against the background stars and brighter nebulosities. About 500 light-years away, the Rho Ophiuchi star clouds, are well in front of the nearby globular star cluster M4, visible just below and right of center. The wide view spans about 6 degrees on the sky.
Image credit: Jim Misti and Steve Mazlin, (acquisition), Robert Gendler (processing)