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NGC 1980

NGC 1980 (also known as OCL 529, Collinder 72 and The Lost Jewel of Orion) is a young open cluster associated with an emission nebula in the constellation Orion. It was discovered by William Herschel on 31 January 1786. Its apparent size is 14 × 14 arc minutes and it is located around the star Iota Orionis on the southern tip of the Orion constellation.
It is made up of about twenty stars of different magnitudes, but the one that stands out the most is Hatsya (ι Ori, Iota Ori) of apparent magnitude 2.75, the brightest star in the cluster. Hatsya is a blue giant who is not alone, as she is a triple star. One of her companions is very close and contrasts a lot with Hatsya, since she is magnitude 7 and looks very small and very close to Hatsya.

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:

                 HYDROGEN                                               LITHIUM                                             SODIUM

I have searched scientific articles and according to   and