Dark Nebula in Scorpio - A dark cloud in Scorpius - This dark nebula is...

Dark Nebula in Scorpio - A dark cloud in Scorpius - This dark nebula is located about 5000 years from Earth. Image obtained by Siding Spring's 3.9m telescope. This curious un - named nebula is governed by radiation from very luminous stars some distance from the nebula. The direction of the radiation source can be seen from the flow pattern in the dark cloud and the extensive bright red rims at the end of the nebula that is exposed to radiation from the hot stars. This part of the nebula is reminiscent of the famous Horsehead nebula in Orion, which is also the consequence of starlight destroying a dark cloud. The source of the energy here is the Scorpius OB association, a group of brilliant, very hot stars, about 5000 light years away from us