group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
25.48 | 162.54 | 70.15 | 447.60 | 13.62 | 173.87 | 79.59 | 283.49 | 0.9808 | 242.8 | 104.6 |
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back to the solar disc SDO HMI 2010-11-19 13:58:57 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 |
7.29 | 71.28 | 28.33 | 284.86 | 12.91 | 177.32 | 83.05 | 282.72 | 0.9925 | 480.5 | 86.8 | |
5.32 | -1.00 | 19.54 | -1.00 | 12.83 | 176.93 | 82.65 | 282.64 | 0.9916 | -371.8 | 999999 | |
0.00 | 2.23 | 0.00 | 6.76 | 12.66 | 175.12 | 80.84 | 282.45 | 0.9872 | -283.0 | -212.8 | |
0.00 | 1.03 | 0.00 | 2.95 | 13.20 | 174.54 | 80.27 | 283.00 | 0.9856 | -448.0 | -466.8 | |
2.06 | 88.00 | 3.68 | 153.03 | 15.09 | 168.25 | 73.98 | 285.04 | 0.9622 | -159.7 | 166.0 | |
10.81 | -5.00 | 18.60 | -5.00 | 15.06 | 167.56 | 73.28 | 285.03 | 0.9589 | 671.5 | 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. |