Processing Images – Saturn Nebula NGC 7009 (Part 2 of 2)

The Saturn Nebula was an interesting nebula to process though it was diffacult to get all the details we wanted to focus on.

The first thing you will see is the central star in the middle of the nebula. This star is the source of the barrel shaped gas which surrounds the star.

You can also see the jet-like stream heading off to the top right hand side of the nebula. We were happy to catch good detail of the redish-pink object in the top right corner. This is called an ansae which is a ball of bright gas which shoots out from the centre of the nebula at high speed before decaying and possibly even exploding.

There are ansae seen shooting out from both sides of the nebula, not seen in the picture,  and this is why NGC 7009 is called the Saturn Nebula. When you look at it, the nebula has two handles which make it look similar to the planet Saturn with the rings visible as a line or handle on each side of the disc.

It is believed that a comet or planet collided with the central star , causing it to become unstable and forming the ansae shotting out on 2 sides of the nebula.

The picture also shows the huge dark cavern which contains the central star of the nebula.

NGC 7009 Final Image 2009-04-05

~ by sydneystargazers on July 25, 2010.

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