group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
29.01 | 184.33 | 64.49 | 421.79 | 13.67 | 173.93 | 77.46 | 283.55 | 0.9738 | 132.8 | 73.7 |
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back to the solar disc SDO HMI 2010-11-19 09:58:57 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 | 90.37 | 16.18 | 275.45 | 12.90 | 177.57 | 81.10 | 282.69 | 0.9879 | 495.6 | 15.3 | |
8.50 | -1.00 | 24.77 | -1.00 | 12.96 | 176.87 | 80.40 | 282.75 | 0.9860 | -485.6 | 999999 | |
0.00 | 1.20 | 0.00 | 2.95 | 12.63 | 175.09 | 78.62 | 282.42 | 0.9804 | -414.0 | -363.1 | |
0.00 | 0.51 | 0.00 | 1.11 | 13.09 | 173.38 | 76.91 | 282.90 | 0.9743 | -371.0 | -328.3 | |
1.89 | 92.25 | 2.99 | 142.28 | 15.09 | 168.27 | 71.80 | 285.12 | 0.9515 | -173.0 | 203.7 | |
13.39 | -5.00 | 20.55 | -5.00 | 15.12 | 167.60 | 71.14 | 285.18 | 0.9480 | 688.3 | 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. |