group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
29.16 | 42.77 | 17.57 | 25.82 | 14.42 | 301.24 | -34.48 | 73.93 | 0.5725 | -93.8 | 123.0 |
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back to the solar disc SDO HMI 2010-08-11 10:59:10 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 |
12.01 | 13.63 | 7.11 | 8.08 | 14.03 | 302.78 | -32.94 | 74.18 | 0.5504 | -864.8 | -598.5 | |
0.00 | 1.08 | 0.00 | 0.64 | 14.37 | 302.39 | -33.33 | 73.68 | 0.5568 | 508.0 | 328.4 | |
0.00 | 1.35 | 0.00 | 0.81 | 13.97 | 301.78 | -33.94 | 74.57 | 0.5642 | -545.0 | -467.0 | |
6.05 | 7.85 | 3.63 | 4.72 | 14.30 | 301.65 | -34.07 | 74.03 | 0.5668 | -796.6 | -513.3 | |
0.00 | 2.44 | 0.00 | 1.48 | 13.35 | 300.70 | -35.02 | 75.93 | 0.5778 | 546.0 | 491.6 | |
0.00 | 1.53 | 0.00 | 0.93 | 13.55 | 300.59 | -35.13 | 75.59 | 0.5797 | 547.0 | 520.6 | |
0.00 | 1.08 | 0.00 | 0.66 | 15.31 | 300.04 | -35.68 | 72.77 | 0.5912 | 131.0 | 156.8 | |
11.10 | 13.81 | 6.83 | 8.50 | 15.13 | 299.68 | -36.04 | 73.17 | 0.5955 | 839.7 | 599.2 |
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. |