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| abstraction > mathematical concept > number > constant > astronomical constant > deceleration parameter |
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| deceleration parameter comparison table | ||||
| Subject | is an instance of | is a kind of | has symbol | has definition |
|---|---|---|---|---|
| astronomical constant | constant | |||
| deceleration parameter | astronomical constant | q0 | A parameter (that denotes the rate of change with time of the Hubble constant. |
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