Magellanic Clouds (NGC 292 or Nubeculae Magellani ) Two dwarf galaxies in the orbit of the Milky Way and a member of the local Group:  Large Magellanic Cloud (BMB) (LMC) Small Magellanic Cloud (SMC)
Magellanic clouds have been known by the peoples of the Middle East since ancient times. The Great Magellanic Cloud was first mentioned in Farisi astronomer Abdurrahman al-Sufi's book "Views of the Stars" published in 964. In Europe, the clouds were first observed by Peter Martyr and Andreas Corsali in the 15th century. It was later reported by Antonio Pigafetta during the expedition of Ferdinand Magellan between 1519 and 1522. In fact, the clouds were not named until after the Magellan were widely known. Bayer's Uranometria star atlas as nubecula major and nubecula minor; The French astronomer Lacaille's 1756 star map is named Le Grand Nuage and Le Petit Nuage.
Large Magellanic Cloud (BMB) Small Magellanic Cloud (KMB) The Large Magellanic Cloud and its neighbor, the Small Magellanic Cloud, are the striking objects of the southern hemisphere and, like the pieces separated from the Milky Way, from the naked eye. Roughly 21 ° in the night sky, the distance between them is 75,000 light years. Observations and theoretical evidence show that the Magellanic Clouds are highly disturbed as a result of the interaction of the Milky Way. Neutral hydrogen flows connect the clouds and the Milky Way. Both are similar to the distorted barred spiral galaxy. The gravity of the clouds also affected the Milky Way and caused deterioration of the outer part of the galaxy disc. The Great Magellanic Cloud and the Small Magellanic Cloud are moving away from us at a speed of 300 km / h and 170 km / h, respectively. Apart from their different structures and low masses, they are separated from our galaxy in two major subjects. First, the clouds are gas-rich; Most of the masses are hydrogen and helium compared to the Milky Way. Second, the clouds are very metalic in terms of the Milky Way. The Great Magellanic Cloud hosted the SN 1987A supernova, which was brighter for over three hundred years. Henrietta Leavitt has discovered and cataloged more than 1500 stars in the Magellanic clouds. In this catalog, he discovered that the variability of the changing stars took longer, which is now used to calculate the distance diameter of the Universe.

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