Protoplanetary disk
rotating circumstellar disk of dense gas surrounding a young newly formed star From Wikipedia, the free encyclopedia
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A protoplanetary disk is a rotating circumstellar disc of dense gas and dust surrounding a young star that has just formed. Protoplanetary disks have radii up to 1000 AU. Protoplanetary disks have been seen around several young stars in our galaxy.[1]
Protoplanetary disks are thought to be thin structures. They have mass that is much smaller than the young star in the center.[2]
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