2021 Apr 21 1900 UTC Sunspot Group Classification Results Number of Detected Sunspot Groups : 4 Group Index : 1 Ratio of magnetic polarity (+/-) : 1.17600 More than one magnetic neutral line is found Number of Significant Neutral Lines : 2 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 63.5453 (criterion : 50) N-S diameter of largest penumbra (deg) : 3.6004347 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0816327 p-Class : k [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hkx [ Magnetic Class Determination ] Magnetic Class : Beta-Gamma Group Index : 2 Ratio of magnetic polarity (+/-) : 0.510791 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.30000 [ Z-Class Determination ] Number of spots : 2 Number of spots with penumbra : 2 Longitudinal extent of this spot group (deg) : 1.26988 Z-Class : D [ p-Class Determination ] Asymmetry factor of penumbral shape : 42.6083 (criterion : 50) N-S diameter of largest penumbra (deg) : 0.38253905 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.142857 p-Class : s [ c-Class Determination ] Number of spots : 2 Area ratio (spots/group) : 0.133803 Number of spots with penumbra : 2 c-Class :o McIntosh Class : Dso [ Magnetic Class Determination ] Magnetic Class : Beta Group Index : 3 Ratio of magnetic polarity (+/-) : 100.000 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 28.9387 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.3133567 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.0563380 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha Group Index : 4 Ratio of magnetic polarity (+/-) : 0.975610 Only one magnetic neutral line is found Roughness of the only magnetic neutral line : 1.37143 [ Z-Class Determination ] Number of spots : 1 Number of spots with penumbra : 1 Z-Class : H [ p-Class Determination ] Asymmetry factor of penumbral shape : 29.6176 (criterion : 50) N-S diameter of largest penumbra (deg) : 1.4551319 (criterion : 2.5 deg) Ratio of umbral area to spot area : 0.145455 p-Class : s [ c-Class Determination ] Number of spots : 1 c-Class :x McIntosh Class : Hsx [ Magnetic Class Determination ] Magnetic Class : Alpha