New star nebula discovery


This 2014 video is called Betelgeuse: The Clock Is Ticking, Great Supernova Explosion Is Soon.

From the Daily Galaxy blog:

June 24, 2011

Massive Nebula Discovered Enveloping the Red Supergiant Betelgeuse

The small red circle in the middle is Betelgeuse, a red supergiant in the constellation of Orion, one of the brightest stars in the night sky. with a diameter about four and half times that of the Earth’s orbit. The black disc corresponds to a very bright part of the image that was masked to allow the fainter nebula to be seen.

Betelgeuse is also one of the biggest known stars, almost the size of the orbit of Jupiter. The VLT image shows the surrounding nebula, which is much bigger than the supergiant itself, stretching 60 billion kilometres away from the star’s surface — about 400 times the distance of the Earth from the Sun.

Red supergiants like Betelgeuse represent one of the last stages in the life of a massive star in which the star increases in size, and expels material into space at a tremendous rate — it sheds immense quantities of material equal to the mass of the Sun in just 10 000 years. …

The nebula cannot be seen in visible light, as the very bright Betelgeuse completely outshines it. The irregular, asymmetric shape of the material indicates that the star did not eject its material in a symmetric way. The bubbles of stellar material and the giant plumes they originate may be responsible for the clumpy look of the nebula.

Asteroid to have close encounter with Earth soon: here.

Baby Star Found on Earth’s Doorstep: here.

Trojan asteroid seen in Earth’s orbit by Wise telescope: here.

NASA says there aren’t as many big asteroids passing Earth as once thought: here.

NASA on Monday unveiled the first close-up image of the asteroid Vesta, the second largest body in the main asteroid belt located between Mars and Jupiter, and the new home of the orbiting Dawn space probe: here.

Close-up of Vesta poses puzzle: here.

3 thoughts on “New star nebula discovery

  1. Coupled stars seen as chief diet for hungry
    black holes:
    Black holes at the hearts of galaxies may grow by
    swallowing single stars from pairs of stars, a new
    study proposes.

    http://www.world-science.net/othernews/120404_blackholes

    * Earth-like planets could number “billions” in
    our galaxy:
    Red dwarf stars host an abundance of worlds that
    could hold liquid water, astronomers report.

    http://www.world-science.net/othernews/120329_planets

    * Planets from long ago puzzle astronomers:
    Scientists have identified a planetary system that
    they describe as a likely survivor from one of the
    earliest cosmic times.

    http://www.world-science.net/othernews/120328_planets

    Like

  2. Japan astronomers find most distant galaxy cluster

    Japanese astronomers said Wednesday they had found a cluster of galaxies 12.72 billion light-years away from Earth, which they claim is the most distant cluster ever discovered. Using a powerful telescope based in Hawaii, the team peered back through time to a point just one billion years after the Big Bang, the birth of the universe.

    “This shows a galaxy cluster already existed in the early stages of the universe when it was still less than one billion years into its history of 13.7 billion years,” the team of astronomers said in a press release.

    http://newsonjapan.com/html/newsdesk/article/96105.php

    Like

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