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Sunspots and active regions on Sep 17, 1999
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Active areas

Sep 17, 1999
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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
№ 8690N16 W6223EKI044012027BETA
№ 8692S26 W4116ESO017013006BETA
№ 8693N13 W4401HSX003001009ALPHA
№ 8695N21 W0403CSO003005329BETA
№ 8699N22 W3913ESO022012004BETA
№ 8700N14 E3125EAO014014294BETA
№ 8702N22 E2802BXO000003297BETA

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)
№ 8697S20 W71038
№ 8698S16 W01328
№ 8701N18 W26352