0 Talk Astronomical measurements Edit History Category page “A parsec is a unit of distance measurement, equal to 3.262 light-years or 19.2 trillion miles.... Parsec “An astronomical unit (most often abbreviated AU) is a distance measurement defined as the... Astronomical unit “A light-year is a unit of distance measurement based on the travel of light energy, undisturbed... Light-year “The Roche Limit was a scientific principle. The idea behind the limit was for determining the... Roche limit Pages in category "Astronomical measurements" The following 4 pages are in this category, out of 4 total. A Astronomical unitL Light-yearP ParsecR Roche limit Related Categories Categories: Measurements | Stellar cartography Add category