2021 Sep 25 1600 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 2 Group Index : 1 Ratio of magnetic polarity (+/-) : 0.543182 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.82222 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 1 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 53.1498 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.73967282 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0285714 p-Class : a [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.857143 Number of spots with penumbra : 1 c-Class :i McIntosh Class : Cai [ Magnetic Class Determination ] Magnetic Class : Beta Group Index : 2 Ratio of magnetic polarity (+/-) : 0.404463 More than one magnetic neutral line is found Number of Significant Neutral Lines : 2 [ Z-Class Determination ] Number of spots : 4 Number of spots with penumbra : 2 Z-Class : C [ p-Class Determination ] Asymmetry factor of penumbral shape : 53.6099 (criterion : 25) N-S diameter of largest penumbra (deg) : 1.9645524 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.125000 p-Class : a [ c-Class Determination ] Number of spots : 4 Area ratio (spots/group) : 0.443350 Number of spots with penumbra : 2 c-Class :i McIntosh Class : Cai [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma