The CrA reflection nebula
author: Anglo-Australian Observatory/David Malin Images/Novapix
reference: a-neb67-26012
Image Size 300 DPI: 51 * 40 cm
Corona Australis (the southern crown, CrA) is in the far southern sky but visible from the southern states of the USA. The constellation is small but distinctive. The conspicuous globular cluster NGC 6723 is at the western (right) edge of the photograph, but it is in Sagittarius, and is about 30,000 light years distant. Almost all the nebulosity here is starlight, reflected from minute grains of dust, some of which gather into darker condensations ('molecular clouds'), blotting out the background stars. Fainter features can be seen here. Shiny NGC 6726-27 near middle of image contains both a visual binary and a variable star. Other wispy nebulae in the western part of the dark cloud betray the presence of young, hidden stars.