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About this object

Sh2-290 is a dim and large planetary nebula in the constellation Cancer. A Planetary Nebula is the remnant of a star that has blown off its shell of gas into space at the end of its life. The bluish green interior is due to ionized oxygen atoms and the reddish outer shell is the glow of hydrogen gas. This image was taken from my suburban backyard with my 250cm astrograph. Red, Green, Blue, Hydrogen and Oxygen III filters were used. The bottom annotated image shows faint galaxies that pepper the area around the nebula.

Image Details

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