group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15.51 | 41.47 | 7.93 | 21.33 | 14.15 | 302.54 | -13.88 | 59.36 | 0.2709 | -420.9 | 42.5 |
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back to the solar disc SDO HMI 2010-08-12 21:59:10 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 |
5.59 | 6.31 | 2.84 | 3.21 | 14.10 | 305.46 | -10.96 | 54.01 | 0.2289 | -1057.6 | -881.5 | |
0.00 | 2.25 | 0.00 | 1.15 | 14.13 | 303.98 | -12.43 | 57.12 | 0.2497 | -1103.0 | -868.1 | |
9.02 | 16.59 | 4.62 | 8.50 | 14.12 | 303.47 | -12.94 | 58.15 | 0.2569 | -1041.4 | -857.6 | |
0.00 | 1.35 | 0.00 | 0.69 | 13.64 | 302.57 | -13.85 | 61.36 | 0.2662 | -831.0 | -642.1 | |
0.90 | 5.41 | 0.47 | 2.82 | 15.01 | 300.17 | -16.25 | 60.66 | 0.3114 | 786.1 | 761.9 | |
0.00 | 4.42 | 0.00 | 2.29 | 13.63 | 300.21 | -16.21 | 64.73 | 0.3013 | 1049.0 | 877.0 | |
0.00 | 4.06 | 0.00 | 2.11 | 14.05 | 299.95 | -16.47 | 63.77 | 0.3079 | 833.0 | 710.5 | |
0.00 | 1.08 | 0.00 | 0.56 | 13.56 | 299.92 | -16.50 | 65.29 | 0.3052 | 848.0 | 649.6 |
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. |