This research aims to study the open cluster of galaxies, the Milky Way, 15 constellations, the M7, M18, M21, M25, M36, M37, M41, M67, M103, NGC188, NGC225, NGC869, NGC114, NGC5460,. NGC6633 the study Initial mass Function of open clusters in the Milky Way Galaxy by creating HR Diagram of open clusters. Then the graph of each open cluster in order to analyze the functions that are used to describe the distribution of massive stars in each open cluster have. The scope for the study program is a database of DS9 is a way of bringing the Flux B and Flux V to create HR Diagram and select Remove only the number of stars in each cluster graphs. Initial mass Function analyzed the frequency distribution graph. Using the mass of the stars in the median number of stars in each open cluster. Then create a trend line, the distribution of stars in the form of a linear equation. Then change the linear equation in the form of an equation Power Law to see the relationship between the mass of the star and the number of stars in each open cluster
study found that the graphs HR Diagram of all the clusters are. distribution varies according to the Flux changing of each star in the open cluster. But in open clusters are found clustered together in the Main sequence stars and a number of studies have shown that when we Initial mass function graphing frequency distributions. Divided by the number of stars According to the mass and Stars with masses lower than stars with a total mass. But the study The mass is very small It was a mistake of data. Very low-mass stars that are less than the number of stars within range of the graph. The analysis found that Photos may be caused by the use of the database. There may be a mistake because the shooting stars and stars with masses less. Low light does not come on camera. But this will be the only star who is likely to be used in the equation.
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