The star clusters and great diffuse gaseous nebulae associated with the star Eta Carinae form one of the finest telescopic objects in the sky. There are prominent dark absorption lanes and irregular luminous clouds extending over 4 square degrees. This wonderful star-forming complex is about 10.000 lightyears distant. The field of view displayed here is only the most active, central portion and measures 77 x 53 arcminutes with north towards the top (0°).
See here for an earlier, wider field image taken with a 4" refractor in the narrowband light of hydrogen alpha.