what are unborn stars called?

Answer 1

gas in a stellar nursery

Answer 2

You start with a nebula - a cloud of gas and dust in space. The nebula contracts (due to gravity) and heats up (due to the contraction). A single nebula will actually fragment into many pieces, and each piece will form a star.

When the thing at the middle of a particular cloud fragment is hot enough to glow and be visible in the infrared, it is called a protostar. The protostar continues to contract (due to gravity) and more material falls on it. But the thermal pressure inside the protostar prevents it from contracting forever.

If the protostar has at least 8% the mass of our Sun, then eventually hydrogen fusion begins in its core, at which point it officially becomes a star.

Shortly thereafter, the immense thermal pressure (from the nuclear fusion which creates lots of heat and energy) exactly balances out gravity, so the star doesn't contract anymore.

Answer 3

There is no official "label" for unborn stars.
But stars in the process of formation are sometimes referred to as "proto-stars", and I have sometimes seen them called "pre-stars".

Answer 4

Well, these other guys were close. But actually, a nebula is sort of a cocoon that gives birth to the individual stars, while the fledgling stars themselves are referred to as "proto-stars."

Answer 5

Well, a nebula is a cloud of gas that forms stars, and can form more than one star.

I'd say an "incomplete" star would be a protostar.

Answer 6

Hi. Gas clouds and nebula.

Answer 7

Afflecks.

Answer 8

Movie stars call them "Fetuses"

Answer 9

Nebula.
They are huge clouds of dust and gas.

Answer 10

wannabe's