Red dwarf | ||||
What is a star? | Automatic translation | Updated June 01, 2013 | ||
A star is a object similar to our sun, which shines through nuclear reactions that occur in the center. | The number of stars in the Universe is estimated between 1022 and 1023. Image: Birth of a star image made from data of X-ray telescope Chandra (blue) and data from the Spitzer infrared telescope (red and orange). NB: The astronomers classify stars in dwarf or giant. | |||
Red dwarfs | ||||
The red dwarf are small red stars. | Image: Alpha Centauri, as the majority of stars is a red dwarf. NB: The astronomers classify stars in dwarf or giant. |