AAO image reference AAT 74. « Previous || Next »
Top left is NE. Image width is about 37 arc min
Image and text © 1987-2002, Anglo-Australian Observatory, photograph by David Malin.
The fainter stars here are cool, like those that orbit the inner 'bulge' of the Milky Way and appear slightly yellow on colour pictures. The foreground patch of dust that crosses this photograph must be illuminated by energetic radiation from stars that are much hotter than those in the background because hydrogen, which is associated with the dust, has been excited into a vivid red fluorescence by absorbing the invisible ultraviolet light. Here and there a few bright but cooler stars are caught up in the outskirts of dust clouds and some of their light is scattered to produce the blue reflection nebulae.
Entry from NGC 2000.0 (R.W. Sinnott, Ed.) © Sky Publishing Corporation, 1988:
NGC 6188 Nb 16 40.5 -48 47 s Ara 20.! F, vL, viE, B* inv NGC 6193 OC 16 41.3 -48 46 s Ara 15. 5.2 Cl, vL, lRi, lC, rrr, F neb invRelated Image
AAT 75. The NGC 6188 nebula and NGC 6193
AAT 75a. The NGC 6188 nebula and NGC 6193 (wide field)
For details of photographic exposure, search technical table by AAT reference number.
Image availability: Photo Print