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.
Relative Size from Relative Temperature and Luminosity.Mass of extra-solar planet from mass and velocity of star and velocity of planet.
Formulae are organized in different tabs to the right as follows: The Astronomy Calculator includes functions that are useful for studying astronomy.
