Command names on positions and proper motions

The command coo

is used to query the (1950) equatorial coordinates

The command pos

is used to query the rounded off equatorial coordinates

The command hpd

is used to query the rectangular (x, y) positions

The command apm

is used to query the absolute proper motions

The command rpm

is used to query the relative proper motions

The command prob

is used to query the membership probabilities

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