2020
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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NASA
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ISRO
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ARIES
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None of these
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Detailed explanation-1: -It was discovered in 1937 by American astronomer Harlow Shapley using the 24-inch Bruce refractor at Boyden Observatory. The galaxy is located about 290, 000 light-years away from the Solar System.
Detailed explanation-2: -They are produced when galaxies collide and their gravitational masses interact. In the violence of the encounter, streamers of galactic material are pulled out away from the parent galaxies and the halos of dark matter that surround them.
Detailed explanation-3: -Typically, large galaxies have formed a major fraction of their stars in the first ∼3 Gyr, whereas dwarf galaxies exhibit a variety of star formation histories (SFHs; see, e.g., Tolstoy et al.
Detailed explanation-4: -Just like their larger cousins, dwarf galaxies can be classified into three varieties: dwarf elliptical galaxies, dwarf irregular galaxies, and dwarf spiral galaxies. The smallest dwarf galaxies in the Universe are known as ultra compact dwarf galaxies.