What percentage of material in a nebula is primarily composed of hydrogen?
Answer
About 90%
A nebula is primarily composed of gas and dust, with hydrogen making up about 90% of the material present.
Related Questions
What percentage of material in a nebula is primarily composed of hydrogen?What generates the heat and light emitted by a protostar before nuclear fusion begins?What is the term for the perfect balance achieved when a star's outward pressure counteracts the inward pull of gravity?What crucial process has *not yet* begun in the core of a T-Tauri star?What are vast clouds of gas and dust where stars begin life commonly referred to as?What celestial body results if a T-Tauri star fails to gather enough mass to reach ignition temperature?What is the primary energy generation mechanism for a star entering the Main Sequence phase?What characteristic is believed to define FU Orionis stars (FUORs)?Approximately what is the maximum duration the T-Tauri phase can persist for?At what approximate temperature threshold (in Celsius) does the core of a protostar typically ignite fusion?Which early stage name emphasizes that an object is the *first* form of a star, awaiting its true power source?