Exciting week ahead for spaceweather: Massive coronal hole opens up along with enormous sunspot AR2674 larger than Earth and Asteroid Florence fly by

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    Solar wind flowing from this coronal hole could reach Earth on Aug. 31st. Credit: NASA/SDO

    As a massive coronal hole opens up on the Sun’s surface we could be looking at an exciting week ahead for spaceweather.

    Spaceweather reports: A big new sunspot is rotating into view over the sun’s eastern limb see movie below: AR2674 has two dark cores larger than Earth and sprawls more than 150,000 km from end to end.

    The active region is crackling with minor C-class solar flares.

    It is too soon to say if bigger explosions are in the offing.



    To top things off a massive asteroid estimated to be 2.7 miles wide is set to make a ‘relatively close encounter’ with Earth on September 1, just 10 days after the coast to coast solar eclipse across North America. Dubbed ‘Florence,’ the huge space rock will pass just 4.4 million miles from our planet – or, about 18 times the distance between Earth and the moon.

    Asteroid Florence, a large near-Earth asteroid, will pass safely by Earth on Sept. 1, 2017, at a distance of about 4.4 million miles, (7.0 million kilometers, or about 18 Earth-Moon distances). Florence is among the largest near-Earth asteroids that are several miles in size; measurements from NASA’s Spitzer Space Telescope and NEOWISE mission indicate it’s about 2.7 miles (4.4 kilometers) in size.



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