Description Usage Format Source Examples
Distance of galactic objects from Earth and their velocities (Hubble, 1929).
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A data frame with 24 observations on the following 2 variables.
Distance
Distance from Earth (in million parsec; 1 parsec = 3.26 light years)
Velocity
Velocity of galaxy (in km/s)
Hubble, E. (1929) A relation between distance and radial velocity among extra galactic nebulae. Proc. Nat. Acad. Sc. 15, pp.168-73.
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