group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
33.61 | 185.80 | 33.67 | 182.16 | -18.78 | 336.69 | -56.36 | 113.96 | 0.8605 | 449.8 | 190.4 |
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back to the solar disc SDO HMI 2011-11-13 18:58:58 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 | 1.55 | 0.00 | 1.35 | -20.80 | 342.14 | -50.91 | 118.01 | 0.8240 | 617.0 | 487.8 | |
0.00 | 0.60 | 0.00 | 0.53 | -20.90 | 341.94 | -51.11 | 118.05 | 0.8261 | 480.0 | 409.9 | |
22.61 | 143.33 | 20.57 | 130.35 | -17.80 | 339.22 | -53.83 | 113.56 | 0.8407 | 849.8 | 243.9 | |
2.32 | 12.81 | 2.23 | 12.29 | -17.77 | 337.05 | -56.00 | 112.88 | 0.8590 | 534.3 | 266.5 | |
0.00 | 3.01 | 0.00 | 2.92 | -18.16 | 336.80 | -56.25 | 113.25 | 0.8619 | 355.0 | 288.9 | |
3.78 | -4.00 | 3.64 | -4.00 | -17.50 | 336.90 | -56.15 | 112.52 | 0.8596 | 468.8 | 999999 | |
0.00 | 0.77 | 0.00 | 0.75 | -17.39 | 336.55 | -56.50 | 112.30 | 0.8622 | 135.0 | 170.7 | |
0.00 | 1.98 | 0.00 | 2.00 | -16.18 | 334.87 | -58.18 | 110.51 | 0.8733 | 75.0 | 155.4 | |
0.00 | 0.95 | 0.00 | 1.17 | -22.26 | 330.18 | -62.87 | 115.95 | 0.9177 | -348.0 | -378.1 | |
0.00 | 2.92 | 0.00 | 4.52 | -24.65 | 325.14 | -67.90 | 117.30 | 0.9491 | -283.0 | -155.8 | |
0.00 | 1.20 | 0.00 | 1.61 | -21.66 | 327.87 | -65.18 | 114.78 | 0.9307 | -339.0 | -293.9 | |
1.63 | 5.24 | 2.23 | 7.09 | -21.94 | 327.55 | -65.50 | 115.00 | 0.9329 | -243.7 | -450.7 | |
3.27 | 10.32 | 5.00 | 15.93 | -23.95 | 325.23 | -67.82 | 116.60 | 0.9479 | -234.3 | 155.3 | |
0.00 | 1.12 | 0.00 | 1.65 | -23.00 | 325.90 | -67.15 | 115.75 | 0.9433 | -160.0 | -150.0 |
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. |