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the nunki star starts its life in the star nebula, just like all stars the nunki formed within dense clouds of dust and gas located in the interstellar medium of a galaxy. Gravity causes these clouds to collapse in on themselves turning into a massive star.Any star which is larger than eight solar masses during its regular main sequence lifetime is considered a massive star.

They typically have a quick main sequence phase,then a red supergiant As the star furiously uses up its nuclear fuel, fusing hydrogen into helium, it would reach a point where it is short of light elements, and would have to heat up to keep fusing nucleus into heavier ones. That extra heat is provided by the contraction (gravitational collapse) of the stellar core, which increases the center temperature to the point where the heavier elements can fuse This extra heat also warms up the outer layers which expands and, being more distant from the core, cool off (relatively speaking) this is where the red color comes from. .when it runs out of helium fuel in its core, the star's core starts to heat up and collapse,

the higher density of the core translates into a lower overall density for the outer layers.

Fusing middle mass elements, however,does not provide as much energy as fusing lighter ones, and eventually, the stellar core is filled with elements like nickel and iron, which will only fuse if you give them energy. Therefore the nuclear reaction stops in the core. No longer supported by the radiation pressure from the core heat, the outer layer fall down on the core, and bounce off the core, causing the super nova. Then now essentially naked stellar core is then left to its own device. If there is enough mass, it will collapse until all the neutrons are "touching" one another so the stellar core is essentially a huge ball of neutrons that collapses and explodes in a tremendous supernova explosion, the dense inner core is all that remains. When the dying star is collapsing, the core gets progressively denser.

types of stars

  • o- blue- hottest
  • b- blue/white
  • a- white
  • f- yellow/white
  • g- yellow
  • k- orange
  • m- red- coolest

meaning of "nunki"

  • the name nunki is of babylonian origin. nunki is the "star of the proclamation of the sea."
  • nunki is also called sigma sagittariius.

color of nunki

nunki is a blue mainsequence star

part of a bigger picture

nunki is a part of the sagittarius constellation

Life Cycle pt.2

Life cycle pt.2

what is a star

variable or binary?

distance in light yrs

a star is a huge , bright ball of burning gas that is held together by gravity. stars contain mostly hydrogen as well as helium and smaller amounts of other elements.

life cycle

because nunki is located so close to the eclipic, it can sometimes be classified as an irregular variable star

the star has a luminosity 228,000 times that of the sun and about seven solar masses. it is a very fast rotator, spinning with a speed of more than 200 kilometres per second, which is about 100 times faster than the Sun. the star lies approximately 228 light years from earth.

apparent magnitude-2.05

absolute magnitude- -7.6

Diameter-6 million(km)

RO-4.5

Right ascention-18h55m 15.92650

Declention- -26 17`48.2068

nunki "a star in our universe"

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