Compass and Scale Image of Eta Carinae Light Echo
7,500 light-years (2,300 parsecs)
The science team studying the Eta Car light echo was led by A. Rest (STScI). The color image (left) of a portion of the Carina Nebula was taken with the CTIO Curtis Schmidt telescope on February 25, 2000. The filter and color assignments are as follows: oxygen (blue), hydrogen (green), and sulfur (red). The single-filter images of the light echo (below right) were taken in 2003, 2010, and 2011 with the CTIO 4-m Blanco telescope.