S2 star orbiting Milky Way black hole

Référence de la vidéo 11927030
Animation of the star S2 orbiting the black hole at the centre of the Milky Way galaxy. Other star orbits are shown, before the point of view zooms in on the orbit of S2. Observations of the orbit of S2 have provided the best evidence that our galaxy contains a central supermassive black hole, called Sagittarius A*. S2 has been observed for one complete orbit, just over 15.5 years, since 1995. The speed of the orbit around the central body allows the mass of the body to be determined, and it was found to be around four million times the mass of the Sun. Its size was calculated from the size of S2's orbit, and the only object that can pack that much mass into that volume is a black hole.<br>Restrictions:
Licence : Droits gérés
Crédit : Science Photo Library / EUROPEAN SOUTHERN OBSERVATORY
Model Release : Non requis
Property release : Non requis
Durée : 35 Secondes
Aspect ratio : 16/9
Restrictions :
  • This clip may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way, or to imply the endorsement by ESO of any product, service or activity

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