Science Desk

Astronomy Day

Tucson Amateur Astronomy Association will have Solar & Evening Telescopes to view the Sun and other Celestial Wonders of the Night Sky.  We will also have interactive exhibits to explore various astronomy subjects.  Experts will also be available to assist amateur Astronomers with using their own equipment.

The Remarkable Transit Of Mercury

On the morning of May 9, 2016, the beginning of the day will be cooler than normal. How is it possible to know this? Well the sun's life-giving warmth will be moderated a little bit by the innermost planet Mercury. As the sun rises at 5:30 a.m., the silhouette of Mercury will be seen advancing across the countenance of the Sun. This kind of shadow play by Mercury occurs once every 10 to 12 years. So in the course of a lifetime if you are in the right location and the weather is good there are only a handful of opportunities to enjoy this.

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