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The Life Cycle Of Vega
Transcript of The Life Cycle Of Vega
"Vega Is the Harp Star | EarthSky.org." EarthSky. N.p., n.d. Web. 17 Apr. 2015.
"Vega." Vega. N.p., n.d. Web. 17 Apr. 2015.
"The Life Cycle Of A Star." The Life Cycle Of A Star. N.p., n.d. Web. 17 Apr. 2015.
"Vega Star - Facts About Vega | Solarsystemquick.com." Vega Star - Facts About Vega | Solarsystemquick.com. N.p., n.d. Web. 17 Apr. 2015.
Nuclear fusion is a process in which two nuclei join to form a larger nucleus, thereby giving off energy. It is the energy source which causes stars to "shine", and hydrogen bombs to explode.In the basic Hydrogen fusion cycle, four Hydrogen nuclei (protons) come together to make a Helium nucleus.
The important thing to remember is that this fusion cycle releases energy in the core of the star. It is this fusion cycle that generates energy in our Sun.
Stars burned hydrogen to create helium. Helium was used to create carbon. Neon, oxygen, silicon, and iron were also created during the lives of stars. However, once these stars started running out of fuel it resulted in the massive explosions that also resulted in all the elements of the periodic table we see today. Without the death of stars, our world would not exist today.
The luminosity of a star is a measure of its brightness. Astronomers measure a star's brightness by examining the amount of energy emitted (given off) every second. The more energy emitted, the higher the brightness.
Vega's Luminosity- 50 L
40 times greater than that of our sun.
Mass- 4.246E30 kg (2.135 Solar mass)
Vega is estimated to have a mass of around 2.1 times that of the sun.
Based on Vega's mass Vega will become a Red Giant because of its high mass.
Temperature- 9,602 K Approx 9,500C (17,000F)
Age- 455 13myr
Diameter: Approx 2.2 million miles (3.5 million km) - 2.5 x the Sun
Rotation Period: 12.5 hours
Distance To Earth- 25.05 light years
Distance From The Sun- 25.3 light years
Vega will live about a million to a billion years and make the trasition in that time to a red giant.
The Star Vega
Vega is easily recognizable for its brilliance and blue-white color it is surrounded by a large disc of dust.
Vega is a main sequence dwarf star
White Dwarf Stars at this stage are very small and hot , the last stage in the life cycle of a star like the Sun
Spectral Class- A0 V
An A-type main-sequence star (A V) or A dwarf star is a main-sequence (hydrogen-burning) star of spectral type A and luminosity class V.