He proposed the name astron , but mentioned that Carl Charlier had suggested siriometer and Herbert Hall Turner had proposed parsec .
Astronomer Royal Frank Watson Dyson expressed his concern for the need of a name for that unit of distance .
Frank Watson Dyson proposed the name astron , but mentioned that Carl Charlier had suggested siriometer and Herbert Hall Turner had proposed parsec .
Astronomer Royal Frank Watson Dyson expressed his concern for the need of a name for that unit of distance .