2021 Apr 13 1400 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 1 Group Index : 1 Ratio of magnetic polarity (+/-) : 1.24916 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.31373 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 63.4912 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.62818563 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0952381 p-Class : a [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.539216 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Cai [ Magnetic Class Determination ] Magnetic Class : Beta