The following is a brief description on the distance, mass and time units employed in the field of astronomy Astronomy Distance UnitsĪstronomical Unit (au): Within our solar system, a common measure of distance is au, which stands for astronomical units. Nonetheless, these units do translate into common units at a grand scale, and vCalc provides automatic conversions between units for calculator inputs and answers via the pull-down menus. 206,264,767,389 astronomical units (ua)īecause of the enormity of space and the size of the objects studied, the field of astronomy employs units not commonly used in everyday life.
One Mega-Parsec is approximately equal to:
