Friday, September 21, 2012

A solar observation opens to the public

The Basque Biodiversity Center, placed in the town Busturia Vizcaya, has organized for this Sunday, in collaboration with Biscayne Astronomical Association; a solar observation will take place outside the center and is open to all public. The day will begin at 11:30 am with a short talk in the auditorium of the center, to explain to people attending some basics about the Sun and clarify questions about what you are going to see later. At noon, start solar observation through telescopes equipped with both white light filter to observe sunspots as hydrogen-alpha filter to see the bumps of the Sun For observation, Biscayne Astronomical Association will make available to the attending a minimum of four telescopes.

The event is free, although pre-registration is necessary to participate in the April 02 phone 94 687 or email As explained by the organizers of the day, "to make solar observations, one can notice several spots on the surface," shape-shifting, "come and go" and move forward as the solar rotation. Furthermore, it is observed that the spots "are usually not alone, but form groups." Another remarkable phenomenon have emphasized, is that the solar limb (the limb or periphery) is less bright than the center of the image, because "at the edges spanned more light way to the telescope through the solar atmosphere, darkening a little. " The Sun is the closest star to Earth and the brightest object in the sky.

It is located at an average distance of 150 million km, so that light takes just over eight minutes to reach Earth. There are only two times when the Sun is visible to the naked eye without danger: when it is near the horizon and all of a total eclipse. Therefore, from the Center for Biodiversity have warned that solar observation should always be taken into account "due care" to avoid "irreparable damage to the eye." For this it is necessary to place a filter in the fully open inlet telescope or use light projection method.

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