Question

Recently discovered HR 6819 is the closest-known of what celestial phenomenon/object to Earth?
Neutron Star
Supernova
Black Hole
Yellow Dwarf

Answer 1

Answer:

Black hole

Explanation:

According to the recent researches,the Recently discovered HR 6819 is the closest-known celestial phenomenon/object to Earth which is the black hole.It clearly means that HR 6819 is

Neither a Neutron Star Nor a Supernova, and not even aYellow Dwarf.But HR 6819 is a black hole.

The black hole in HR 6819 is one of the very first stellar-mass black holes found that do not interact violently with their environment and, therefore, appear truly black. But the scientists could spot its presence and calculate its mass by studying the orbit of the star in the inner pair.

Answer 2

Option 3 (Black hole) is the right answer.

Explanation:

• The black hole throughout HR 6819 might be one of the very first holes discovered that don't really interfere aggressively against their surroundings but instead just seem to be completely black.
• However, researchers could have seen the existence as well as to measure its weight by observing the orbit including its star throughout the internal pair.

The other given choices are not related to the given scenario. So that Option 3 seems to be the appropriate one.

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