The discoverer of the globular cluster was Friedrich Wilhelm Herschel, who first observed the object on July 12, 1784.
The Hubble telescope, using the ACS and WFC3 cameras, took an image of the star cluster NGC 6638, located in the constellation Sagittarius. This is reported by ESA.
It has been noted that the space telescope revolutionized the study of globular clusters, as it was almost impossible to clearly identify stars in globular clusters using ground-based telescopes.
Due to the obscuration caused by the Earth’s atmosphere, it is impossible to distinguish one star from another, according to the department, but thanks to Hubble’s location in low Earth orbit, our planet’s atmosphere is no longer a problem.
As a result, the apparatus was used to study what stars make up globular clusters, how they form, and what role gravity plays in these dense systems.
It was previously reported that NASA scientists compared images taken by the James Webb telescope, launched last year, and Hubble, launched in 1990.
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