Question

Which black hole is nearest to the Earth? Name it and write some lines​

Answer 1

Answer:

ASTRONOMERS FROM THE EUROPEON SOUTHERN OBSERVATION (eso) DISCOVERED THE NEAREST BLACK HOLE FROM THE PLANET EARTH ,REPORTED THE UNIVERSE TODAY . IT IS LOCATED IN THE CONTELLATION OG TELLESCOPIUM (NEAR THE CONSTELLATION OF SAGGITTARIUS )JUST 1000 LIGHT YEARS AWAY FROM EARTH.

Explanation:

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Answer 2

Answer:

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Sagittarius A is the black hole which is nearest to the earth.(according to 2020)

Sagittarius A is a bright and very compact astronomical radio source at the Galactic Center of the Milky Way. It is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic.[3] Sagittarius A is the location of a supermassive black hole,similar to those at the centers of most, if not all, spiral and ellipticall galaxies.

Observations of several stars orbiting Sagittarius A, particularly star S2, have been used to determine the mass and upper limits on the radius of the object. Based on mass and increasingly precise radius limits, astronomers have concluded that Sagittarius A is the Milky Way's central supermassive black hole.Reinhard Genzel and Andrea Ghez were awarded the 2020 Nobel Prize in Physics for their discovery that Sgr A* is a supermassive compact object, for which a black hole is the only currently known explanation.

Cygnus X-1 is the black hole which is nearest to the earth.(according to 2021)

Cygnus X-1, binary star system that is a strong source of X-rays and that provided the first major evidence for the existence of black holes. Cygnus X-1 is located about 7,000 light-years from Earth in the constellation Cygnus. The primary star, HDE 226868, is a hot supergiant revolving about an unseen companion with a period of 5.6 days. Analysis of the binary orbit led to the finding that the companion has a mass greater than seven solar masses. A star of that mass should have a detectable spectrum, but the companion does not; from this and other evidence astronomers have argued that it must be a black hole. The X-ray emission is understood as being due to matter torn from the primary star that is being heated as it is drawn to the black hole.

Explanation:

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