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Gerhard Bachmayer | all galleries >> AstroPhotos >> Astrophotos 2003 - 2007 > IC1805 - The "Heart Nebula" in Cassiopeia
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IC1805 - The Heart Nebula in Cassiopeia

IC1805 - The "Heart Nebula" in Cassiopeia

The young and hot members in the center of IC1805 excite the surrounding clouds of hydrogen gas with their UV-radiation.
The bright patch in the upper right corner is another bright nebulosity - IC1795.
The picture is a composite of pictures capturing the emission lines of H-alpha and OIII, emitted by ionized hydrogen and oxygen.

Modified Canon 20D mounted on a TMB 80mm/F6 + Televue 0.8x reducer/flattener. Halpha-filter: 12x600sec/ISO800; OIII-filter: 15x600sec/ISO800. Calibration and stacking, averaging, sharpening in Images Plus and Photoshop CS2. full exif

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melody 26-Apr-2008 13:27
what a fantastic image!!
thats why I love astronomy