I have analyzed the spectrum of this star cluster + nebula. In this graph I have looked at which were the highest peaks, to identify what element it is made of. Then I have calculated the area of each peak with respect to the total and these are my results.
To show that these are the correct elements I will attach some photos. To find what each element is, I have used the following web page: http://hyperphysics.phy-astr.gsu.edu/hbase/hyde.html#c4
HYDROGEN LITHIUM SODIUM
I have searched scientific articles and according to Kounkel M., Hartmann L., Calvet N. and Megeath T., 2017, contains hydrogen and lithium. Also, acortding to Min Fang et al 2017 contains sodium.
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