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Some globular clusters, like Omega Centauri in the Milky Way and Mayall II in the Andromeda Galaxy, are extraordinarily massive, measuring several million solar masses (M ☉) and having multiple stellar populations.
These are globular clusters within the halo of the Milky Way galaxy. The diameter is in minutes of arc as seen from Earth. For reference, the J2000 epoch celestial coordinates of the Galactic Center are right ascension 17h 45m 40.04s, declination −29° 00′ 28.1″.
Globular clusters contain the most ancient stars in our Milky Way. They are huge, symmetrical groups of stars that are packed closely together in space. They look like round fuzzy balls when seen...
Recent observations of stellar globular clusters in the Milky Way Galaxy, combined with revised ranges of parameters in stellar evolution codes and new estimates of the earliest epoch of globular cluster formation, result in a 95% confidence level lower limit on the age of the Universe of 11.2 billion years.
The main goal of this work is to understand what we can learn if we include these new objects into the Milky Way globular cluster (GC) system that we know today. We compiled a catalog of 37 recently discovered globular clusters.
The Milky Way Galaxy contains more than 150 globular clusters (the exact number is uncertain because of obscuration by dust in the Milky Way band, which probably prevents some globular clusters from being seen).
The Galaxy contains more than 150 globular clusters (the exact number is uncertain because of obscuration by dust in the Milky Way band, which probably prevents some globular clusters from being seen).
Mixed with the stars are several globular clusters of similar stars, and both the stars and the clusters have nearly radial orbits around the nucleus. The bulge stars can be seen optically where they stick up above the obscuring dust of the galactic plane.
The cluster is about 10 times as massive as other big globular clusters — almost as massive as a small galaxy. Among the many questions scientists want to answer: Are there any IMBHs, and if so, how common are they? ... Located just above the plane of the Milky Way, the cluster appears almost as large as the full Moon when seen from a dark ...
The best-studied globular cluster system in a spiral galaxy is that in the Milky Way. The GCLF in the Milky can be described by a log-normal distribution with a peak at MV = −7.29 ± 0.13 and a dispersion parameter of σ = 1.1 ± 0.1 mag (Secker 1992).