On Sunday there will be a solar eclipse peculiar will be hybrid, ie start as annular eclipse (with a solar disk ring around the moon dark) and end up as total eclipse, with the sun completely hidden. It will be visible in its entirety only from the equatorial Atlantic and Africa (from Gabon to Somalia), but the Internet, once again, provides access to this celestial event to be broadcast, among other places, from Kenya. Until then shifted, among others, a group of experienced eclipse chasers of the Astrophysical Institute of the Canaries (IAC) to witness the phenomenon from the eastern shore of Lake Turkana. In the Iberian peninsula the partial eclipse will begin shortly after one o’clock in the afternoon to finish an hour later. From Canary look better (at 12.10 local time), with a solar disk occultation by the moon of 31%. Experts never tire of repeating that it is essential to protect your eyes with sunscreen at him.
The show will start at dawn on the American east coast, where the risers can witness the partial occultation of the solar disk in the morning reddish, very near the horizon. More than half the diameter of the Sun is hidden by the shadow of the moon as seen from New York and Boston and by 47% from Washington and Miami. The total concealment of the star, which begins in the Atlantic, will be visible from a narrow strip of African territory, starting with Gabon, where they have international teams of astronomers shifted to the phenomenon observed and, despite the high risk of weather adverse (Overcast) there. Jay Pasachoff, chair of the working group of eclipses of the International Astronomical Union in Gabon to witness and study the event with a group of colleagues, students and tourists. From there, if you are lucky and the sky is clear on Sunday, will see a total eclipse of just over a minute, while in Northern Kenya last all just 15 seconds.
“This eclipse is very difficult to observe because it only touches a strip of land in central Africa,” says Miquel Serra-Ricart, IAC researcher and prominent leader of the expedition to Kenya, the third in Africa who runs for the same purpose to observe solar eclipses. This time, to choose the right place, reports the IAC in a statement, Serra-Ricart has taken into account not only the visibility of the phenomenon in the sky, but also the chance of having good weather conditions, water availability, food , passable roads and security of the group. The particular site chosen for this European project team is Gloria Sibiloi National Park. From there, the total duration of the eclipse is two hours and 14 minutes and all the relay will take place between 15.20 and 15.30, CET.
A solar eclipse occurs when the moon crosses in front of the star in the line of sight from Earth, and may also be partial (when the lunar path runs right through the center of the star), total ( when the entire solar disk is obscured), or cancel (when you see a ring around the body brought Sol dark). On this Sunday will be a hybrid eclipse, which will start being void in the Atlantic and then will complete the rest of the way (of 47 kilometers wide equatorial Africa). Will be different from previous hybrid solar eclipse, in April 2005, when it started and ended up being void, recalls the magazine Sky & Telescope .
solar corona during the eclipse looks like a fire edge, depends on the activity of the star, and this year is up, remember the experts, so that the crown should be fairly symmetrical and perhaps with protrusions of the photosphere. However, 2013 has been a year of abnormally weak solar maximum.
No comments:
Post a Comment