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NGC 7293

It is one of the planetary nebulae closest to Earth and was discovered by Karl Ludwig Harding before 1824. This nebula is an example of a planetary nebula formed by a star similar to the Sun in the last stages of its life. The remaining star is turning into a white dwarf. The age of the nebula is estimated at approximately 10,600 years.Hades Exuberante on Twitter: "Nebulosa de la Hélice (NGC 7293).… "Here you can find more information. 

This is the spectrum that I obtained from JS9 and Chandra Archieves:

Peak A obtains nitrogen

PeaK B obtains scandium

Peak C obtains selenium

Peak D obtains Europium 

The total area it is of 3731614.6

Pick A area = 1343301 so--------  

Pick B area = 3266057----------

Pick C area = 2620457----------

Pick D area = 2166498---------

The results are:

3.6% of nitrogen

8.75% of scandium

7% of Selenium 

5.8% of Europium 

I have been investigating some scientists articles and I read here that the largest amount it's of Carbon.  I haven't found that element during my invesigation, but in fact, that doesn't say at all that my investigations are wrong. I haven't found more chemical elements so I don't now if the rest of them are okey.