NASA Sees Monster Sunspot Growing Fast, Solar Storms Possible
by Tariq Malik, SPACE.com Managing Editor
Date: 20 February 2013 Time: 07:09 PM ET
The bottom two black spots on the sun, known as sunspots,
appeared quickly over the course of Feb. 19-20, 2013. These two sunspots
are part of the same system and are over six Earths across.
CREDIT: NASA/SDO/AIA/HMI/Goddard Space Flight Center
The giant sunspot was captured on camera by NASA's Solar Dynamics Observatory as it swelled to enormous proportions over the 48 hours spanning Tuesday and Wednesday (Feb. 19 and 20). SDO is one of several spacecraft that constantly monitor the sun's space weather environment.
"It has grown to over six Earth diameters across, but its full extent is hard to judge since the spot lies on a sphere, not a flat disk," wrote NASA spokeswoman Karen Fox, of the agency's Goddard Space Flight Center in Greenbelt, Md., in an image description.
More - Link http://www.space.com/19892-monster-sunspot-photo-solar-flares.html
Source: Space.com .
Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://friendsofthezeiss.org >
Electronic Mail - < firstname.lastname@example.org >
About the Author: < http://buhlplanetarium.tripod.com/#GAW >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
Twitter: < http://twitter.com/
Facebook: < http://www.facebook.com/pages/
Blog: < http://spacewatchtower.
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
< http://www.planetariu p.m. m.
* Adler Planetarium, Chicago:
* Astronomer, Educator, Optician John A. Brashear:
< http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
* Civil War Museum of Andrew Carnegie Free Library:
< http://garespypost.tripod.com >
* cable-car railway, Pittsburgh:
* Public Transit: