Vanderbilt Dyer Observatory to host public viewing of extremely rare celestial event

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5/25/2004
9:45 am

Dyer Observatory

NASHVILLE, Tenn. - In the morning hours of June 8, visitors to Vanderbilt Dyer Observatory will witness an astronomical event that no living person has ever seen. Venus-the Earth's sister planet-will move directly between the Earth and the sun. The public is invited to view this rare event during a live broadcast at the observatory.

Beginning at 11 p.m. on June 7, astronomers from Fisk and Vanderbilt universities will be on hand to discuss the historical significance of this event, which last occurred in 1882. Over approximately the next seven hours, the tiny black dot of the planet Venus will be visible as it cuts a slow left-to-right diagonal path across the disc of the sun.

"This is a unique opportunity to witness a natural event of such rarity and historical importance," said Keivan Stassun, assistant professor of astronomy at Vanderbilt University. "Even 'blue moons' occur more often than this!"  
 
Dyer Observatory is one of only 12 centers around the world chosen by NASA to host the live broadcast from the National Observatory of Greece. Dyer Observatory staff will record its own images of the transit to be shared with viewers around the world via the NASA Venus Transit 2004 Web site.
 
The previous transit of Venus occurred on Dec. 6, 1882, and was one of just six events of its type ever seen by mankind since the invention of the telescope. Previous transits gave scientists an opportunity to measure the scale of the distance from Earth to the sun, which is called the astronomical unit. 

The transit occurs four times in every 243 years. There are two December transits, eight years apart, and 121.5 years later there are two June transits, also eight years apart. The cycle begins again after another 105.5 years. The next Venus transit will occur in June 2012, allowing many to be lucky enough to witness this rare event twice in one lifetime. Following that, the next transit will not occur until 2117.

The live broadcast allows safe viewing of the Venus transit from the observatory. Because of the hazard of serious eye damage, the sun should not be looked at directly; proper eye protection is needed.

Dyer Observatory is one of Middle Tennessee's most unique venues for public, private and corporate events. Each year, Dyer hosts thousands of visitors through school tours, observation nights, scout events and other community programs.
 
Vanderbilt Dyer Observatory is located at 1000 Oman Drive in Brentwood. Reservations are required for the Venus transit broadcast and can be made by calling 615-373-4897. For more information on the Venus transit, visit www.dyer.vanderbilt.edu.

Media contact:  Melanie Catania, (615) 322-NEWS
melanie.catania@vanderbilt.edu

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