what-is-a-parsec-why-do-scientists-use-this-unit-instead-of-light-yearshttps://www.astronomy.com/science/what-is-a-parsec-why-do-scientists-use-this-unit-instead-of-light-years/What is a parsec? Why do scientists use this unit instead of light-years? | Astronomy.comcategories:Science | tags:Magazinehttps://www.astronomy.com/wp-content/uploads/sites/2/2021/09/may-2009-stellar-parallax.jpg?fit=1169%2C1500InStockUSD1.001.00articleASY2023-05-18 09:59:032009-03-23 00:00:0037249
