This is a link to a article and paper about the 4 known planetary nebulae in Globular cluster. I found it interesting.
http://aasnova.org/2017/01/24/the-cu...ular-clusters/
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This is a link to a article and paper about the 4 known planetary nebulae in Globular cluster. I found it interesting.
http://aasnova.org/2017/01/24/the-cu...ular-clusters/