Hydrogen is usually a colourless gas in our atmosphere but in stars it is always burning so it is burning orange or red or yellow depending on the type of star.
The two stars that contain the greatest amount of hydrogen are dwarf stars and main-sequence stars. These stars are primarily composed of hydrogen, which fuels their fusion processes and provides them with energy.
Hydrogen
Stars contain hydrogen, helium and a little iron.
The coolest stars are red in color. They are classified as red dwarfs and have surface temperatures ranging from about 2,500 to 3,500 degrees Celsius.
The term for swirling clouds of hydrogen gas out of which stars are born is "nebula."
Stars have a similar bluish white color due to the gases that are inside of them. When you see stars that are bluish white you know that they contain a lot of hydrogen.
All stars 'burn' hydrogen
Hydrogen is certainly the main component of most stars.
All stars contain hydrogen and helium.
Essentially none. All starts are largely hydrogen, with helium being next most abundant. A stars color is a function of it's temperature, from red (relatively cool) through orange, yellow, white blue-white and blue (hottest).
All main sequence stars fuse hydrogen.
No. Main sequence stars are simply stars that are fusing hydrogen into helium and have a specific relationship between color and luminosity. They range from red dwarfs to large O-type main sequence stars.
hydrogen,All stars are composed primarily of hydrogen. Stars can also contain some other elements such as helium, but hydrogen accounts for the majority of a star's composition.
Stars are made of hydrogen and helium.
In the HR-diagram, a diagram of color vs. luminosity, most stars are concentrated close to one curve, called the "main sequence". It turns out that stars on the main sequence are the stars that mainly get their energy by converting hydrogen into helium.
The temperature of stars can vary, with the hottest stars reaching temperatures of over 100,000 degrees Celsius. These stars are typically blue in color and are known as blue giants. The temperature of a star is closely related to its color and size.
Generally, yes. For stars on the main sequence, meaning that they fuse hydrogen at their cores, mass, size, color, brightness, and temperature are all closely related. More massive stars are larger, brighter and hotter than less massive ones. The least massive stars are red. As you go to more massive stars color changes to orange, then yellow, then white, and finally to blue for the most massive stars.