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abstraction > mathematical concept > number > quantity > time > Kelvin timescale > Sun Kelvin timescale |
Sun Kelvin timescale comparison table |
Subject | is an instance of | is a kind of | has value | has definition |
---|---|---|---|---|
Kelvin timescale | time | (gravitational binding energy) / luminosity | The time it takes a star to contract gravitationally from infinite radius down to its present radius by radiating its thermal energy. | |
Sun Kelvin timescale | Kelvin timescale | 2 to 3 × 107 years | The time it takes the Sun to contract gravitationally from infinite radius down to its present radius by radiating its thermal energy. |
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