Explanation: As the Sun heads South, crossing the celestial equator today at 1:37 a.m. Eastern Time, Autumn begins for Earth's Northern Hemisphere. This Autumnal Equinox finds an increasingly active Sun steadily approaching a solar cycle maximum expected around the year 2003. The solar activity cycle is driven by a periodic winding up of the Sun's internal magnetic field. This colorized picture is a mosaic of recent ultraviolet images from the orbiting TRACE satellite sensitive to light emitted by highly charged iron atoms. Growing in number, the intricate structures visible are the Sun's hot active regions with temperatures over a million degrees Fahrenheit and their associated magnetic loops.
Citation: Nemiroff, Robert. "Autumn and the Active Sun." Active Sun. TRACE,team Nasa. 19 Feb. 2009 .
I choose this picture because it shows what it looks like when the season is changing to Autumn. I was born on the first day of Autumn and my Mom almost named me Autumn. So i thought it was really intresting because we are not able to see how this looks like on the Earth. I also chose this picture because its really cool to see it ultraviolet. Astronomy is also very intresting because its cool to see how the the different planets look. Earth looks pretty cool from outerspace. Earth is my favorite planet. The sun is also my favorite star because it keeps us warm and living.
What a GREAT pic! I always thought the sun burned bright red and yellow...I too am an Autumn child! Consider using a text color that will show up a little brighter in the future...you want all your readers to see your posts easily.
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