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Which of these phrases describes the sun? (1 point)
Class G yellow star
O Class A white star
O Class M red star
O Class O blue star
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Sagot :

kateiscool

Answer:

Class G yellow star!

Explanation:

It is in the main sequence of its life at 4.6 billlio years old

ayfat23
  • The phrase that give description of sun among the given options is ( Class G yellow star)

  • G-type main-sequence star can be regarded as yellow dwarf, or G star it can be written as (Spectral type: G-V),

  • yellow dwarf/ G star can be regarded as main-sequence star known as  (luminosity class V) and they are of spectral type G.

  • Star under this category contain about 0.9 to 1.1 solar masses having  an effective temperature ranges between about 5,300 and 6,000 K.

  • Compare to other main-sequence stars, conversation of  element hydrogen to helium in their core through nuclear fusion are done by G-type main-sequence star

  • Red dwarf star can also be regarded as class M dwarf and it is the most numerous type of star that exist in the universe, it has smallest type of hydrogen-burning star, sun does not belongs to this category.

  • Class O- blue type star can be regarded as  hot and  blue-white star which belongs to spectral type O as regards the Yerkes classification system Example of Class O blue star is Cygnus OB2, sun does not belong to this class

  • Example that are common among  G-type main-sequence star (G2V type) are The Sun and  the star that are been  bounded by gravitation in the Solar System,

  • There is a fusion of  approximately 600 million tons of hydrogen and helium by the sun in each seconds.

Therefore, sun belongs to Class G yellow star

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