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Venus heliographic passing (it is to come the ちめ it is う or Transit of Venus) with, while Venus when you see from the earth the earth and the sun entering between exactly, Venus the solar disk hiding extremely the one part of that, in order to keep passing, as the black circular silhouette it is the astronomical phenomenon which is visible in consequence ones. Venus heliographic passing which happens recently is something which happens on 2004 June 8th. The next time happens on 2012 June 6th. Observes Venus heliographic passing the safest method, using the telescope, is to project the solar image to the projection board. But you do not use the telescope and also, using the special glasses and the filter etc. for solar observation, you can also look at Venus which passes the solar disk with naked eye. Making use of the filter for solar observation absolutely at the sun you do not have to look. The cell of the retina appealing and/or destroying the damage, when decrease of temporary or permanent vision and, it is worst, there is a possibility of loss of eyesight......