North is ~ to the
left. This close up view of IC 1805 is rotated 110 degrees CCW.
The colors in the
top image follow the spirit of the Hubble Palette. This image
uses Ha, SII and OIII filters mapped to the red, green and blue
channels respectively. The bottom image uses the same filter mapping
with adjustments to the channel levels to create the blue and gold
motif, made popular by the Hubble Imaging Team.
Sprawling across hundreds of light-years, emission nebula IC 1805 is
a mix of glowing interstellar gas and dark dust clouds. Only about
7,500 light-years away, stars were born in this region, nicknamed
the Heart Nebula. Light from this and other glowing gas clouds
surrounding hot, young stars comes in very narrow bands of emission
characteristic of energized atoms within the clouds. The top
image shows the light from sulfur atoms in red hues, with hydrogen
in green, and oxygen atoms in blue.