2021-10-29

NASA released Hubble images of the dying star CW Leonis

By yqqlm yqqlm

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05c6408a076d0e4 - NASA released Hubble images of the dying star CW Leonis

the star is actually a “carbon star”, and the “spider web” around the star is actually an atmosphere blown away like “coal ash”. As they expand into space, they change shape, as seen in the Hubble Space Telescope video. NASA celebrates Halloween with “creepy” celestial landscapes

CW Leonis’s carbon cloud is swallowing the dying star. They were created when the outer layer of CW Leonis was thrown into space. This carbon is formed by nuclear fusion inside stars, giving them a carbon rich atmosphere. Exploding carbon back into space provides raw materials for the formation of stars and planets in the future. All known life on earth is built around carbon atoms. Complex biomolecules are formed by combining carbon atoms with other common elements in the universe

NASA released Hubble images of the dying star CW Leonis

CW Leonis is the nearest carbon star 400 light-years from the earth. This gives astronomers the opportunity to understand the interaction between the star and the turbulent envelope around it. The complex internal structure of shells and arcs may be formed by the magnetic field of stars. Detailed Hubble observations of CW Leonis over the past 20 years have also shown the expansion of material lines ejected around the star

the bright beam radiated from CW Leonis is one of the most striking features of the star. Their brightness has changed in 15 years – an incredibly short time range from an astronomical point of view. Astronomers speculate that gaps in the dust shrouded in CW Leonis may allow starlight beams to penetrate and illuminate the dust, just like searchlights through clouds. However, the exact reason for the sharp change in brightness has not been explained

when the outward pressure from the nuclear fusion “furnace” from the core balances with the extrusion of gravity, a star will glow. When the star runs out of hydrogen fuel, the continuous pull of gravity causes the star to collapse. As the core shrinks, the plasma shell around the core becomes hot enough to begin to fuse hydrogen, giving the star a second life. It generates enough heat to make the outer layer of the star expand rapidly and expand into a “bloated” red giant

CW Leonis is orange red because its surface temperature is relatively low, 2300 degrees Fahrenheit. However, the green beam from the star glows at invisible mid infrared wavelengths. In the absence of natural color, green is added to the infrared image for better analysis through color contrast

the Hubble Space Telescope is an international cooperation project between NASA and the European Space Agency (ESA). NASA’s Goddard Space Flight Center in Maryland manages the telescope. The Space Telescope Science Institute (STScI) in Baltimore, Maryland conducts Hubble scientific operations