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gptkbp:instanceOf
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black hole
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gptkbp:alternativeName
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gptkb:Sgr_A*
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gptkbp:apparentMagnitude
|
not visible (obscured by dust)
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gptkbp:category
|
astronomical radio source
galactic nucleus
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gptkbp:constellation
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gptkb:Sagittarius
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gptkbp:declination
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−29° 00′ 28.118″
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gptkbp:discoveredBy
|
1974
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gptkbp:distanceFromEarth
|
about 26,000 light-years
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gptkbp:emits
|
gptkb:X-rays
gptkb:radio_waves
infrared radiation
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gptkbp:firstImageReleased
|
2022
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gptkbp:hostedBy
|
gptkb:Milky_Way
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Sagittarius A*
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gptkbp:influenced
|
orbits of nearby stars (e.g., S2 star)
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gptkbp:locatedIn
|
gptkb:Milky_Way
center of the Milky Way
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gptkbp:mass
|
about 4 million solar masses
|
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gptkbp:notableFor
|
first direct image of Milky Way's black hole
|
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gptkbp:observedBy
|
gptkb:Event_Horizon_Telescope
|
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gptkbp:partOf
|
gptkb:Sagittarius_A
|
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gptkbp:rightAscension
|
17h 45m 40.0409s
|
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gptkbp:studiedBy
|
gptkb:Keck_Observatory
gptkb:Chandra_X-ray_Observatory
gptkb:ESO's_Very_Large_Telescope
gptkb:Karl_Jansky_Very_Large_Array
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gptkbp:bfsParent
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gptkb:Event_Horizon_Telescope
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gptkbp:bfsLayer
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4
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