PPT Slide

A Sunspot Lab

Classification Description Appearance

E Large sunspot group, with multiple

penumbras and complicated structure.

Small spots present. Extent greater than

10o of Solar latitude/longitude

F Very large, complex group. Extent greater

than 15o of Solar latitude/longitude

G Large group without small spots

nearby. Extent greater than

10o of Solar latitude/longitude

H Spot surrounded by penumbra. Diameter

greater than 2.5o.

I Spot surrounded by penumbra. Diameter

less than 2.5o.

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