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Sunspots and active regions on Apr 17, 2013
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Active areas

Apr 17, 2013
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sunspots

Sunspots and active regions

The following regions with sunspots can be now observed on the Sun's surface
Group numberSunspots Location on the SunThe number of spots in the groupThe classification by the Zurich's modified systemArea (millions of shares of the solar hemisphere)Group length (in degrees)Carrington Longitude (in degrees)Group's magnet type
№ 1719N09 W6403Cso006003074Beta
№ 1721S18 W4706Dao011007056Beta
№ 1722S20 W3608Cao004007045Beta
№ 1723S17 E0923Dai018008001Beta-Gamma
№ 1724S26 E3107Dao007004338Beta

H-alpha plages without spots

The following H-alpha plages without spots can be currently observed on the Sun's surface
Area numberCoordinatesCarrington Longitude (in degrees)
№ 1717S12 W85095