Burt Solar systems are created(Sun+planets) from a vast cloud of
spinning gas +dust."The Solar Nebular" That theory has been with us for
about 200 years Later on the dust and a big shockwave came from the
demise of another star.(supernova blast) Flatting of this gas and dust
was from its fast rotation. a primitive protosun(Embryo) was forming.
Over many millions of years grains of carbon.iron.rock,ice and other
materials, to make the outer area to be called the accretion disk. I
have added still more to this scenario using my own original thoughts.
My thinking is a solar system with a Sun like star needs 10 times more
time to form,and is the reason when I am asked the age of the universe I
come up with 22 billion years Go figure TreBert