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News for Norther Colorado and the world

Tuesday, September 2, 2014

Posts Tagged ‘sunspot’

Astronomy Picture of the Day

Astronomy Picture of the Day

Violent Sunspot Group AR 1302 Unleashes a Flare  Image Credit: jp-BrahicExplanation: One of the most active sunspot groups in years is currently crossing the Sun. AR 1302 first came around the Sun's edge last week and is so large it can be seen without a telescope. Coronal Mass Ejections from AR 1302 have already caused strong geomagnetic storms including notable aurora activity around both of Earth's poles. Pictured above, plasma was left magnetically hanging above the Sun's ... Full Story

Astronomy Picture of the Day

Astronomy Picture of the Day

  The above image shows, however, that even during off days the Sun's surface is a busy place.   Sunspot Loops in Ultraviolet Credit: TRACE Project, NASA Explanation: It was a quiet day on the Sun. The above image shows, however, that even during off days the Sun's surface is a busy place. Shown in ultraviolet light, the relatively cool dark regions have temperatures of thousands of degrees Celsius. Large sunspot group AR 9169 from the last solar cycle is visible as ... Full Story

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