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1 × 1010[ 47] There are actually two black holes, orbiting at each other in a close pair with a 542-day period. The largest one is quoted, while the smaller one's mass is not defined. [ 47] Black hole of central elliptical galaxy of RX J1532.9+3021. 1 × 1010[ 48] QSO B2126-158. 1 × 1010[ 23] – 4.9+1.13.
Sagittarius A*, abbreviated as Sgr A* (/ ˈ s æ dʒ ˈ eɪ s t ɑːr / SADGE-AY-star [3]), is the supermassive black hole [4] [5] [6] at the Galactic Center of the Milky Way.Viewed from Earth, it is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic, [7] visually close to the Butterfly Cluster (M6) and Lambda Scorpii.
A supermassive black hole ( SMBH or sometimes SBH) [ a] is the largest type of black hole, with its mass being on the order of hundreds of thousands, or millions to billions, of times the mass of the Sun ( M☉ ). Black holes are a class of astronomical objects that have undergone gravitational collapse, leaving behind spheroidal regions of ...
However, some U.S. states had previously emancipated some or all of their black population. The table below shows the percentage of free blacks as a percentage of the total black population in various U.S. regions and U.S. states between 1790 and 1860 (the blank areas on the chart below mean that there is no data for those specific regions or ...
The biggest wild American black bear ever recorded was a male from New Brunswick, shot in November 1972, that weighed 409 kg (902 lb) after it had been dressed, meaning it weighed an estimated 500 kg (1,100 lb) in life and measured 2.41 m (7 ft 11 in) long. [60]
TON 618 (abbreviation of Tonantzintla 618) is a hyperluminous, broad-absorption-line, radio-loud quasar and Lyman-alpha blob [ 2] located near the border of the constellations Canes Venatici and Coma Berenices, with the projected comoving distance of approximately 18.2 billion light-years from Earth.
Meanwhile, the states of Florida, Ohio, Michigan, New Jersey, Texas, Virginia, Tennessee, Massachusetts, Maryland, and Mississippi each had one majority-black city. [citation needed] In 2020, the largest cities which had a black majority were Detroit, Michigan (population 639K), Memphis, Tennessee (population 633K), Baltimore, Maryland ...
The following is a list of the 100 largest metropolitan areas in the United States with large African American populations. As a result of slavery, more than half of African Americans live in the South. [1] The data is sourced from the 2010 and 2020 United States Censuses.