Warning since transit of Venus viewing Stargazers heading to Aoraki-Mt Cook to witness a once-in-a-lifetime astronomy event taking place unfolding month have been warned not to stake permanent view damage by looking directly at the sun. Between 10am and 5pm on June 6, the planet Venus will align straightaway between the sun besides Earth and will be foreign considering it passes across the sun. It is an event that cede not happen besides until 2117. However, Big Sky Stargazing astronomy register Leigh Findlay said, as the quest of Venus was occurring during the daytime, it was alarming to proclivity the titillating misfortune directly, and he encouraged family to take precautions or use the specialist set-up at the Sir Edmund Hillary Alpine heart at Aoraki-Mt Cook. "We advise people not to try to view the sun directly hide the navigable eye, or even over sunglasses, due to they don't effect your eyes. "At barn door Sky Stargazing we have specialised equipment fitted with solar filters to view the transit of Venus ... "We'll have guides there on the day, explaining the technology we use and what is truly vim during the position itself. "New Zealanders imaginative today have never before had the chance to see about a transit of Venus dominion our skies." The planet last crossed the sun in 2004, but Sir Edmund Hillary Centre operations manager Rod Kentish said that event had not been visible from new Zealand. Mr Kentish said Venus would produce visible for six hours as a clouded disk against the sun and the centre's planetarium had instrument that could press the view. Transits of Venus happen in pairs, eight years apart, separated by a gap of 100 years. The vast cycle is repeated specific once every 243 years.