The Sun – 11 May 2012 by josefrancisco.salgado on Flickr.A través de Flickr:The Sun grows more active as it approaches maximum sunspot number (predicted for Feb 2013). The top view, shot on May 11 through a dense solar filter attached to the Doane Observatory’s 6-in finder telescope by Adler Astronomer Dr. José Francisco Salgado (Nikon D4), shows a Jupiter-sized sunspot group in the Sun’s lower atmosphere (the Photosphere). While the bottom view, shot about the same time by Adler Astronomer Larry Ciupik (video camera) using the Doane’s 90mm Coronado Solar Telescope, shows the Sun’s mottled middle atmosphere (the Chromosphere) which resides more than 1,000 miles higher than the Photosphere. Notice the huge prominences shooting outward from the edge of the solar disk. Prominences and the dark lines known as filaments (prominences seen top down), form near strong surface magnetic fields. The Coronado Solar Telescope rejects all but a tiny bit of sunlight in an exceptionally narrow region of the spectrum centered on a dark Hydrogen line called H-alpha. © 2012 José Francisco Salgado; © 2012 Larry Ciupik
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The Sun – 11 May 2012 by josefrancisco.salgado on Flickr.

A través de Flickr:
The Sun grows more active as it approaches maximum sunspot number (predicted for Feb 2013).

The top view, shot on May 11 through a dense solar filter attached to the Doane Observatory’s 6-in finder telescope by Adler Astronomer Dr. José Francisco Salgado (Nikon D4), shows a Jupiter-sized sunspot group in the Sun’s lower atmosphere (the Photosphere). While the bottom view, shot about the same time by Adler Astronomer Larry Ciupik (video camera) using the Doane’s 90mm Coronado Solar Telescope, shows the Sun’s mottled middle atmosphere (the Chromosphere) which resides more than 1,000 miles higher than the Photosphere.

Notice the huge prominences shooting outward from the edge of the solar disk. Prominences and the dark lines known as filaments (prominences seen top down), form near strong surface magnetic fields. The Coronado Solar Telescope rejects all but a tiny bit of sunlight in an exceptionally narrow region of the spectrum centered on a dark Hydrogen line called H-alpha.

© 2012 José Francisco Salgado; © 2012 Larry Ciupik

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