View Full Version : Will We Look Like This in 5 Billion Years?

2009-Jan-15, 04:10 PM
In another amazingly gorgeous image, Hubble has captured a unique planetary nebula nested inside an open star cluster. Both the cluster (NGC 2818A) and the nebula (NGC 2818) reside over 10,000 light-years away, in the southern constellation Pyxis (the Compass). This spectacular structure contains the outer layers of a sun-like star that [...]

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2009-Jan-15, 07:55 PM
How much is actually glowing as opposed to reflecting?

Jeff Root
2009-Jan-15, 08:38 PM
My two questions:

How does an open cluster stay together for amost a billion years?
What are the chances that the star which formed the nebula was not
associated with the cluster, but just passing through?

-- Jeff, in Minneapolis

2009-Jan-16, 06:41 PM
This also:

http://www.space.com/scienceastronomy/0901...ary-nebula.html (http://www.space.com/scienceastronomy/090115-hubble-planetary-nebula.html)

That IS gorgeous! B)

nestled within a star cluster some 10,000 light-years from Earth in the southern constellation Pyxis, or The Compass.

NGC 2818 is one of very few planetary nebulae in our galaxy located within an open cluster