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Sirius : triple star ?
Deep infrared image around Sirius
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 (www.animea.com)
F. Durillon, 09/29 2008
