2025 Apr 28 1700 UTC
Sunspot Group Classification Results
Number of Detected Sunspot Groups :           8

Group Index :       1
Ratio of magnetic polarity (+/-) :     0.517241
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.53846
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      45.1496 (criterion : 50)
N-S diameter of largest penumbra (deg) :       2.0840261 (criterion : 2.5 deg)
Ratio of umbral area to spot area :    0.0322581
p-Class : s
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hsx
[ Magnetic Class Determination ]
Magnetic Class : Alpha

Group Index :       2
Ratio of magnetic polarity (+/-) :      25.7000
[ Z-Class Determination ]
Number of spots :           2
Number of spots with penumbra :           0
Z-Class : B
[ p-Class Determination ]
p-Class : x
[ c-Class Determination ]
Number of spots :           2
Area ratio (spots/group) :     0.371429
Number of spots with penumbra :           0
c-Class :o
McIntosh Class : Bxo
[ Magnetic Class Determination ]
Magnetic Class : Alpha

Group Index :       3
Ratio of magnetic polarity (+/-) :      1.00227
Only one magnetic neutral line is found
Roughness of the only magnetic neutral line :      1.61538
[ Z-Class Determination ]
Number of spots :           5
Number of spots with penumbra :           3
Longitudinal extent of this spot group (deg) :      9.73687
Z-Class : D
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      24.2142 (criterion : 50)
N-S diameter of largest penumbra (deg) :       1.3671035 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.120000
p-Class : s
[ c-Class Determination ]
Number of spots :           5
Area ratio (spots/group) :     0.568750
Number of spots with penumbra :           3
c-Class :c
McIntosh Class : Dsc
[ Magnetic Class Determination ]
Magnetic Class : Beta

Group Index :       4
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 :      39.7783 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.26394356 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.250000
p-Class : s
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hsx
[ Magnetic Class Determination ]
Magnetic Class : Alpha

Group Index :       5
Ratio of magnetic polarity (+/-) :     0.653117
More than one magnetic neutral line is found
Number of Significant Neutral Lines :           2
[ Z-Class Determination ]
Number of spots :           8
Number of spots with penumbra :           2
Z-Class : C
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      49.8158 (criterion : 25)
N-S diameter of largest penumbra (deg) :       1.3765770 (criterion : 2.5 deg)
Ratio of umbral area to spot area :   0.00746269
p-Class : a
[ c-Class Determination ]
Number of spots :           8
Area ratio (spots/group) :     0.343570
Number of spots with penumbra :           2
c-Class :o
McIntosh Class : Cao
[ Magnetic Class Determination ]
Magnetic Class : Beta-Gamma

Group Index :       6
Ratio of magnetic polarity (+/-) :      0.00000
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      24.9892 (criterion : 50)
N-S diameter of largest penumbra (deg) :      0.37540790 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.285714
p-Class : s
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hsx
[ Magnetic Class Determination ]
Magnetic Class : Alpha

Group Index :       7
Ratio of magnetic polarity (+/-) :      6.25641
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           1
Z-Class : H
[ p-Class Determination ]
Asymmetry factor of penumbral shape :      14.1376 (criterion : 25)
N-S diameter of largest penumbra (deg) :       2.2273361 (criterion : 2.5 deg)
Ratio of umbral area to spot area :     0.166667
p-Class : s
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Hsx
[ Magnetic Class Determination ]
Magnetic Class : Alpha

Group Index :       8
Ratio of magnetic polarity (+/-) :      100.000
[ Z-Class Determination ]
Number of spots :           1
Number of spots with penumbra :           0
Z-Class : A
[ p-Class Determination ]
p-Class : x
[ c-Class Determination ]
Number of spots :           1
c-Class :x
McIntosh Class : Axx
[ Magnetic Class Determination ]
Magnetic Class : Alpha