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The cluster contains around 400,000 stars, [8] and can be seen with the naked eye under good observing conditions. [ 10 ] NGC 6397 is one of at least 20 globular clusters of the Milky Way Galaxy that have undergone a core collapse , [ 8 ] meaning that the core has contracted to a very dense stellar agglomeration .
The Des Plaines crater or Des Plaines disturbance is recognized as an impact crater in Cook County, Illinois, United States.It is located beneath the eastern part of the city of Des Plaines, which is a suburb of Chicago.
The U.S. State of Illinois currently has 47 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 14 combined statistical areas, 12 metropolitan statistical areas, and 21 micropolitan statistical areas in Illinois. [1]
NGC 6355 is a globular cluster located in the constellation Ophiuchus. [5] It is at a distance of 28,000 light years away from Earth, and is currently part of the Galactic bulge. [3] NGC was discovered by the German-born British astronomer William Herschel on 24 May 1784. [6]
When the core's mass exceeds the Chandrasekhar limit of about 1.4 M ☉, degeneracy pressure can no longer support it, and catastrophic collapse ensues. [10] The outer part of the core reaches velocities of up to 70 000 km/s (23% of the speed of light) as it collapses toward the center of the star. [11]
You can’t play one team with a winning record, and have a non-conference schedule of FIU, Western Illinois and Charlotte, and expect to be taken seriously in any future CFP poll.
Although it had been thought more than 50 years ago that dust could form in the ejecta of a core-collapse supernova, [57] which in particular could explain the origin of the dust seen in young galaxies, [58] that was the first time that such a condensation was observed. If SN 1987A is a typical representative of its class then the derived mass ...
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