The Lutz–Kelker bias is a supposed systematic bias that results from the assumption that the probability of a star being at distance s {\displaystyle s} increases with the square of the distance which is equivalent to the assumption that the distribution of stars in space is uniform. In particular, it causes measured parallaxes to stars to be larger than their actual values.
The Lutz–Kelker bias is a supposed systematic bias that results from the assumption that the probability of a star being at distance s {\displaystyle s} increases with the square of the distance which is equivalent to the assumption that the distribution of stars in space is uniform. In particular, it causes measured parallaxes to stars to be larger than their actual values.
Source: Wikipedia "Lutz–Kelker bias" · CC BY-SA 4.0
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