Sunspot Ar2192
by Nasa/sdo/science Photo Library
Title
Sunspot Ar2192
Artist
Nasa/sdo/science Photo Library
Medium
Photograph - Photograph
Description
Sunspot AR2192, Solar Dynamics Observatory (SDO) image. Sunspots are pockets of cool, dark gas which occur in magnetically active regions of the Sun, often in groups. This sunspot has a diameter of around 130,000 kilometres, around ten times that of the Earth. AR2192 was the largest sunspot of this solar cycle. The SDO is an Earth-orbiting spacecraft launched in 2010 by NASA and used to observe the Sun. Image obtained on 23 October 2014, as a Quick-Look Continuum view from the HMI (Helioseismic and Magnetic Imager) instrument. HMI Continuum (Intensitygram) images show the solar surface in visible light (the photosphere). This is a coloured intensitygram. For the full view of the Sun and this sunspot, see image C035/6557.
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September 17th, 2018
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