Sagittarius A* facts for kids

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Saggitarius A*
Chandra image of Sgr A
Saggitarius A* image by Chandra X-Ray Observatory
Observation data
Type Radio source
Right ascension 17h 45m 40.05s
Declination ±-29° 00′ 27.9″
Distance 25900±1400 light years
Constellation Saggitarius
Physical characteristics
Notable features Radio source in the center of the Milky Way
Other designations Sgr A*
See also: Diffuse nebula, Lists of nebulae

Sagittarius A* is a bright object at the center of the Milky Way Galaxy.

History

It was discovered betwwen the 13 and 15 february 1974 by the astronomers Bruce Balick and Robert Brown. It is a radio source, giving off strong radio waves. It is near the border of the constellations Sagittarius and Scorpius. It is part of a larger astronomical feature called Sagittarius A. Astronomers think it is the site of a supermassive (very large) black hole. In 2002, a team of astronomers informed about the movement of the star S2 near Sagittarius A* during a cycle of 10 years. Agreeing with this information, they discard the posibility that said Sgr A* has got dark clusters inside it.

Sagittarius A*
Other image of the Chandra X-Ray Telescope

See also

Images for kids


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