บรรณานุกรม
https://ngthai.com/science/21845/solarsystem/
scimath.org/lesson-physics/item/7316-origin-of-solar-system
http://www.sunflowercosmos.org/A00-01-solar_system.html
http://nso.narit.or.th/index.php/2017-11-25-10-50-19/2017-12-07-
04-56-44/2017-12-09-02-59-16