group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
28.30 | 171.76 | 69.30 | 431.48 | 13.68 | 173.90 | 78.52 | 283.56 | 0.9775 | 134.3 | 101.2 |
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back to the solar disc SDO HMI 2010-11-19 11:58:57 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 |
5.23 | 81.42 | 17.99 | 282.10 | 12.98 | 177.39 | 82.01 | 282.78 | 0.9902 | 453.5 | 76.3 | |
8.49 | -1.00 | 27.56 | -1.00 | 12.97 | 176.93 | 81.55 | 282.77 | 0.9891 | -426.8 | 999999 | |
0.00 | 0.94 | 0.00 | 2.57 | 12.52 | 175.14 | 79.76 | 282.31 | 0.9841 | -323.0 | -275.5 | |
0.00 | 0.60 | 0.00 | 1.60 | 12.68 | 174.99 | 79.61 | 282.47 | 0.9836 | -394.0 | -377.7 | |
1.54 | 88.80 | 2.60 | 145.21 | 15.08 | 168.26 | 72.89 | 285.06 | 0.9570 | -220.5 | 164.0 | |
13.04 | -5.00 | 21.15 | -5.00 | 15.10 | 167.56 | 72.18 | 285.12 | 0.9535 | 684.3 | 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. |