Protoplanetary disk facts for kids
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.
Protoplanetary disks are thought to be thin structures. They have mass that is much smaller than the young star in the center.
Images for kids
-
Fraction of stars that show some evidence of having a protoplanetary disk as a function of stellar age (in millions of years). The samples are nearby young clusters and associations. Figure taken from review of Mamajek (2009).
-
Protoplanetary disk. Simulated spiral arm vs observational data.
-
Protoplanetary disk surrounding the young star Elias 2-27, located some 450 light years away.
-
Artist's impression of the water snowline around the star V883 Orionis.
-
20 protoplanetary discs captured by the High Angular Resolution Project (DSHARP).
-
A shadow is created by the protoplanetary disc surrounding the star HBC 672 within the nebula.
-
Protoplanetary disc AS 209 nestled in the young Ophiuchus star-forming region.
-
Protoplanetary disk HH 212.
-
By observing dusty protoplanetary discs, scientists investigate the first steps of planet formation.
-
Concentric rings around young star HD 141569A, located some 370 light-years away.
-
Debris disks detected in HST images of young stars, HD 141943 and HD 191089 - images at top; geometry at bottom.
-
Protoplanetary disk HH-30 in Taurus - disk emits the reddish stellar jet.
-
Artist's impression of a protoplanetary disk.
-
A proplyd in the Orion Nebula.
-
Image of the circumtrinary disc around GW Orionis.
See also
In Spanish: Disco protoplanetario para niños
