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You are here: Home > What's Up > Celestial Events > Transit of Venus 2012 > Observing the Transit
Observing the Transit of Venus
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CAUTION!
Great care must always be taken when observing the Sun: Intense solar radiation can cause instantaneous burns to the retinas and permanent eye damage. When observing the Sun directly, either with the naked eye or a telescope, one must always use specially designed solar filters.
Safe observing methods
In case of doubt, why not show up at one of the public observing sessions organized by amateur astronomers!
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During its transit, Venus will appear like a perfectly round, black dot measuring about 1/32nd of the Sun’s diameter. Using special protective filters, those with good eyesight should be able to see the silhouette of Venus with the naked eye.
In order to fully appreciate the event, telescopes or binoculars are suggested, but they must be equipped with a special solar filter.
The Sun’s image can also be projected on a screen with a pair of binoculars or small telescope. In this case, a filter should not be used. However, the setup must be monitored at all times to ensure that no one accidentally looks through the optics.
Under all circumstances, please follow these tips and techniques for a safe and enjoyable transit obervation. And there's always the possibility of joining one of the public observing sessions in your area!
Don't miss this transit of Venus, it's your last chance to see this rare phenomenon. Remember: the next one won't happen until December 11, 2117!
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