Bewitching agony a sun-like star


This picture was taken with the space telescope NASA/ESA Hubble demonstrates the last gasp of a star like our Sun. This star ends its life cycle, shedding the outer gas envelope, forming a kind of cocoon around its remaining core of the star. Ultraviolet light from the dying star makes the material glow.

This burned-out star called a white dwarf, is represented by the white dot in the center of the image. Our Sun eventually burns out and also around it too formed a cloud of debris, but it will happen not earlier than in 5 billion years.

Our milky way galaxy is littered with these stellar remnants, called planetary nebulae. These objects have nothing to do with planets. Astronomers of the eighteenth and nineteenth centuries gave them this name because when observed through small telescopes, these objects looked the same as the distant planets Uranus and Neptune. Planetary nebula presented in this picture is called NGC 2440. White dwarf, located in the center of nebula NGC 2440 is one of the hottest objects in its class, renowned scientist and the temperature at the surface reaches 200000 degrees Celsius.

The chaotic structure of the nebula indicates that the reset of the membranes of the star occurs sporadically. During each ejection, the star ejects material in a certain direction, and this is due to the lobed structure of this planetary nebula. This nebula is also rich in dust clouds, some of which form long, dark streaks pointing towards the star. Planetary nebula NGC 2440 lies at a distance of about 4000 light-years from Earth in the direction of the constellation of the Feed.

The material expelled by the star glows with different colors depending on its composition, density and proximity to red-hot remnants of stars. Blue glowing helium

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