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|Time (T) | |Time (T) | ||
|Galactic Time Unit (Gt) | |Galactic Time Unit (Gt) also named click | ||
|The duration of 1,073,741,824 (= 2<sup>30</sup>) periods of the radiation emitted by the hyperfine transition of atomic hydrogen. | |The duration of 1,073,741,824 (= 2<sup>30</sup>) periods of the radiation emitted by the hyperfine transition of atomic hydrogen. It's about 0.754 seconds. | ||
Note : 2<sup>30</sup> Gt equals to one galactic year which lasts for about 25.74 terrestrial years. | Note : 2<sup>30</sup> Gt equals to one galactic year which lasts for about 25.74 terrestrial years. | ||
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|Length (L) | |Length (L) | ||
|Galactic Length Unit (GLU; pronounced "Gloo") | |Galactic Length Unit (GLU; pronounced "Gloo") | ||
|The distance travelled by light in a vacuum in <math>\frac{1}{2^{25}} \text {Gt}</math>. | |The distance travelled by light in a vacuum in <math>\frac{1}{2^{25}} \text {Gt}</math>. Which is close to 6.75 meters. | ||
Note : The "Galactic" (G) unit is the distance travelled by light in one galactic year. So it's about 25.74 light-years | Note : The "Galactic" (G) unit is the distance travelled by light in one galactic year. So it's about 25.74 light-years | ||
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