giant.catalogs.utilities.RAD2MAS

giant.catalogs.utilities.RAD2MAS: float = 206264806.24709636

This constant converts from units of radians to units of milli-arc-seconds through multiplication.

That is angle_mas = angle_rad*RAD2MAS where angle_mas is the angle in milli-arc-seconds and angle_rad is the angle in radians.

Mathematically this is \(\frac{180}{3600000\pi}\).