A protostar is a very young star that is still gathering mass from its parent molecular cloud. It is the earliest phase in the process of stellar evolution. [1]

Oct 30, 2025 · What is a Protostar? A protostar is a stage in the formation of a star where a dense cloud of gas and dust begins to collapse under its own gravity. This collapse triggers the process of nuclear …

Aug 30, 2004 · The image below shows a very young protostar, still deeply embedded in its dust cloud. The star itself is the bright red spot near the base of the dark region. The bright spots above the star …

The meaning of PROTOSTAR is a cloud of gas and dust in space believed to develop into a star.

Description: A protostar is an early stage in the star formation process. It is a large mass of gas and dust formed as a result of the contraction of a giant molecular cloud in the interstellar medium.

May 21, 2024 · What is a Protostar? A protostar is a young star which is in the early stages of formation, before it reaches the main sequence stage. This stage of star formation can last 100,000 years or …

PROTOSTAR definition: an early stage in the evolution of a star, after the beginning of the collapse of the gas cloud from which it is formed, but before sufficient contraction has occurred to permit …

During this time, and up until hydrogen burning begins and it joins the main sequence, the object is known as a protostar. This stage of stellar evolution may last for between 100,000 and 10 million …

A protostar is a young star that is still in the process of forming, located within a molecular cloud and characterized by its accumulation of mass from surrounding material.

Dec 20, 2025 · A Protostar is the first stage of a star’s life after an event of some form has caused a nebula of dust and cloud to collapse. It has not yet built enough mass to fuse hydrogen to helium.