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| physical object > natural object > particle > hypothetical particle > dark matter > massive compact halo object > black hole > extremal black hole | 
| extremal black hole | ||||
| subject | fact | |||
| extremal black hole | has definition Black hole endowed with the maximal amount of force charge possible for a given total mass. | ![]()  | 
| is a kind of black hole | ![]()  | |
| black hole | has antonym white hole | ![]()  | 
| massive compact halo object | is a part of halo | ![]()  | 
| has acronym MACHO | ![]()  | |
| dark matter | is a part of dark halo | ![]()  | 
| has synonym hidden mass | ![]()  | |
| hypothetical particle | has acceptance status hypothetical | ![]()  | 
| physical object | has location or center of gravity | ![]()  | 
| has angular momentum | ![]()  | |
| has mass | ![]()  | |
| has velocity | ![]()  | |
| has momentum | ![]()  | |
| has temperature | ![]()  | |
| has volume | ![]()  | |
| has extent | ![]()  | |
| has material | ![]()  | |
| particle | obeys uncertainty principle | ![]()  | 
| has frequency inversely proportional to the wavelength | ![]()  | |
| has wavelength inversely proportional to its momentum | ![]()  | |
| has charge | ![]()  | |
| has mass | ![]()  | 
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