group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
32.53 | 202.05 | 65.18 | 425.84 | 13.70 | 173.90 | 76.34 | 283.60 | 0.9694 | 115.0 | 47.0 |
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back to the solar disc SDO HMI 2010-11-19 07:58:57 UT ![]() See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
4.81 | 102.40 | 13.36 | 279.35 | 12.92 | 177.58 | 80.02 | 282.70 | 0.9849 | 465.4 | -19.9 | |
9.61 | -1.00 | 25.38 | -1.00 | 12.94 | 176.92 | 79.36 | 282.73 | 0.9828 | -563.9 | 999999 | |
0.00 | 0.94 | 0.00 | 2.01 | 12.86 | 174.27 | 76.71 | 282.67 | 0.9735 | -395.0 | -411.1 | |
1.63 | 98.71 | 2.44 | 144.48 | 15.20 | 168.22 | 70.66 | 285.29 | 0.9454 | -178.6 | 191.1 | |
16.48 | -4.00 | 24.00 | -4.00 | 15.20 | 167.56 | 70.00 | 285.32 | 0.9418 | 688.9 | 999999 |
Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
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Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
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Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
B | - Heliographic latitude B; positive: North, negative: South | |
L | - Heliographic longitude L | |
LCM | - Longitudinal distance from the Sun's central meridian | |
Pos. angle | - Position angle | |
r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. |