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Rigaudie François
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Ring of fire
Superb !
Supernova 1987A - 30th Anniversary

In this animated scientific visualization you can see the remnant (https://goo.gl/QTUuiz) of Supernova 1987A as the luminous ring of material we see today. This ring has a diameter of about one light-year.

SN 1987A was located in the constellation of Dorado (https://goo.gl/vz9CzY), in the Large Magellanic Cloud, about 168,000 light-years away from Earth. Its light reached Earth on February 23rd, 1987. The progenitor star was Sanduleak −69° 202 (https://goo.gl/iXCbuo), a B3 blue supergiant (https://goo.gl/NDcyGY).

New data indicates that by now the shock wave produced by the supernova explosion has passed through the dense ring of gas produced earlier, during the late phases of evolution in the life of the progenitor star.

To commemorate the 30th anniversary of SN 1987A, new images, time-lapse movies, a data-based animation based on work led by Salvatore Orlando at INAF-Osservatorio Astronomico di Palermo, Italy, and a three-dimensional model are being released. Take a look at the links for all those materials.

Read more on it here:
https://www.nasa.gov/feature/goddard/2017/the-dawn-of-a-new-era-for-supernova-1987a
http://hubblesite.org/news_release/news/2017-08
https://en.wikipedia.org/wiki/SN_1987A

Take a look at this video, zooming in on Supernova 1987A:
https://youtu.be/k7nQsz7S7Eg

What is a supernova remnant?

Supernova remnants are the results of supernovae (https://goo.gl/VhJNhj) explosions. They consist of ejected material from their stellar progenitors and the interstellar material the expanding shock wave is sweeping up. Aside from visible light - they are emission nebulae (https://goo.gl/QtI28t), driven by the heat of the shock wave - supernova remnants can be very bright in radio and X-ray emissions. Within the structure of ejected material you can find a neutron star (https://goo.gl/f22feI) or black hole (https://goo.gl/AYbW7Q), if the supernova was a core-collapse supernova (https://goo.gl/dRqFoo). Read more on it here:
https://en.wikipedia.org/wiki/Supernova_remnant

The Large Magellanic Cloud

The Large Magellanic Cloud (LMC) is a satellite galaxy of our Milky Way, its distance to Earth is about 160,000 light-years. It has a diameter of about 14,000 light-years and is it roughly 1/100 times as massive as the Milky Way. It is quite a large object in the sky, with an apparent size more than 20 times the width of the full moon. More information here:
https://en.wikipedia.org/wiki/Large_Magellanic_Cloud

Image credit: This scientific visualization, using data from a computer simulation, shows Supernova 1987A, as the luminous ring of material we see today. NASA, ESA, and F. Summers and G. Bacon (STScI); Simulation Credit: S. Orlando (INAF-Osservatorio Astronomico di Palermo)

Thank you for your interest in this Astronomy/Astrophysics collection. Maybe add me on Google+ (+Pierre Markuse) and Twitter (https://twitter.com/Pierre_Markuse) or have a look at the Space/Space Technology collection here: https://goo.gl/5KP0wx

#science #astronomy #astrophysics #supernova #sn1987a #typeiisupernova #supernovaremnant #corecollapse #lmc #snr #space
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Un set de timbres Royal Mail à l'effigie de David Bowie et de ses albums :)





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