group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
51.87 | 328.86 | 26.49 | 168.09 | -6.90 | 139.32 | 3.32 | 193.56 | 0.2466 | 839.6 | 372.3 |
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back to the solar disc SDO HMI 2013-08-21 13:59:08 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 |
0.00 | 0.99 | 0.00 | 0.51 | -7.32 | 143.91 | 7.90 | 209.13 | 0.2813 | -740.0 | -637.2 | |
0.00 | 1.89 | 0.00 | 0.98 | -9.03 | 143.26 | 7.25 | 204.49 | 0.3021 | 981.0 | 765.8 | |
0.00 | 1.08 | 0.00 | 0.56 | -10.88 | 141.65 | 5.65 | 197.58 | 0.3213 | -720.0 | -511.0 | |
0.00 | 1.44 | 0.00 | 0.75 | -9.32 | 141.31 | 5.31 | 198.13 | 0.2948 | 755.0 | 607.0 | |
0.00 | 1.35 | 0.00 | 0.70 | -9.19 | 141.10 | 5.09 | 197.56 | 0.2917 | 856.0 | 731.8 | |
0.00 | 3.42 | 0.00 | 1.73 | -4.81 | 140.54 | 4.53 | 201.22 | 0.2185 | -789.0 | -721.1 | |
0.00 | 1.44 | 0.00 | 0.75 | -9.91 | 140.55 | 4.55 | 195.12 | 0.3007 | -876.0 | -719.9 | |
51.87 | 304.21 | 26.49 | 155.36 | -6.76 | 139.32 | 3.32 | 193.69 | 0.2441 | 1399.8 | 421.8 | |
0.00 | 2.52 | 0.00 | 1.28 | -5.11 | 139.29 | 3.28 | 195.33 | 0.2167 | -854.0 | -549.6 | |
0.00 | 1.53 | 0.00 | 0.82 | -14.81 | 138.75 | 2.74 | 187.13 | 0.3745 | -971.0 | -725.3 | |
0.00 | 1.71 | 0.00 | 0.91 | -14.61 | 137.43 | 1.42 | 183.75 | 0.3691 | -778.0 | -657.6 | |
0.00 | 1.17 | 0.00 | 0.62 | -13.57 | 137.39 | 1.39 | 183.85 | 0.3521 | -998.0 | -792.0 | |
0.00 | 4.58 | 0.00 | 2.35 | -7.49 | 136.79 | 0.79 | 183.13 | 0.2502 | 777.0 | 790.7 | |
0.00 | 1.53 | 0.00 | 0.77 | -4.82 | 133.66 | -2.35 | 168.63 | 0.2081 | -568.0 | -568.5 |
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. |