protoplanetary disks

What Are Protoplanetary Disks Made Of?

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What Are Protoplanetary Disks Made Of? The material in the disks is thought to consist mainly of gas (99% by mass), predominantly molecular hydrogen and helium with trace amounts of CO and other molecules, and small dust particles (1% by mass). What is the purpose of a protoplanetary disk? A rotating disk of dust and

What Causes This Disk To Form And Flatten?

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What Causes This Disk To Form And Flatten? Because they are born out of the disk, the planets will orbit the star in the plane of the disk, unless collisions skew their orbits, or the planets are ejected out of the star’s planetary system How protoplanetary is formed? Protoplanetary disks are formed almost immediately after