Sirius : triple star ?
Deep infrared image around Sirius
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Animation showing the interaction of a third body orbiting Sirius. The animation illustrates the possible effect of a third body with a long period (2500 yr) orbit. The tidal interaction during the close encounter at the passage of the object in the inner part of its orbit could cause a temporary cloud expansion that will result in a temporary reddening during a few centuries as observed for Sirius. Lire la suite... Droits réservés : Frédéric Durillon (
F. Durillon, 29-09-2008
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