group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
66.39 | 394.00 | 47.42 | 280.63 | -17.65 | 58.48 | -39.10 | 123.15 | 0.7199 | 812.0 | 283.9 |
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back to the solar disc SDO HMI 2013-09-20 17:59:04 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 |
59.32 | 373.46 | 42.02 | 264.91 | -17.66 | 58.78 | -38.80 | 123.34 | 0.7170 | 1165.4 | 313.4 | |
1.59 | -1.00 | 1.15 | -1.00 | -17.68 | 57.75 | -39.83 | 122.70 | 0.7275 | 613.8 | 999999 | |
0.00 | 1.86 | 0.00 | 1.36 | -18.82 | 57.14 | -40.44 | 123.67 | 0.7401 | -110.0 | -59.0 | |
0.62 | 4.43 | 0.45 | 3.24 | -18.49 | 57.16 | -40.43 | 123.29 | 0.7380 | 346.0 | 195.9 | |
0.44 | 1.59 | 0.33 | 1.18 | -18.90 | 56.61 | -40.97 | 123.44 | 0.7456 | -806.2 | -697.1 | |
0.00 | 1.24 | 0.00 | 0.97 | -17.22 | 52.52 | -45.06 | 119.14 | 0.7764 | -577.0 | -414.6 | |
2.12 | 3.36 | 1.66 | 2.63 | -16.84 | 52.37 | -45.21 | 118.62 | 0.7761 | -772.0 | -606.4 | |
0.00 | 1.86 | 0.00 | 1.47 | -17.13 | 52.06 | -45.52 | 118.80 | 0.7804 | -553.0 | -449.3 | |
0.53 | 2.04 | 0.42 | 1.60 | -16.94 | 52.03 | -45.55 | 118.56 | 0.7798 | -644.0 | -496.2 | |
1.77 | 3.19 | 1.39 | 2.50 | -16.32 | 52.04 | -45.54 | 117.84 | 0.7769 | -718.2 | -567.8 | |
0.00 | 0.97 | 0.00 | 0.77 | -15.59 | 51.44 | -46.14 | 116.69 | 0.7796 | -480.0 | -391.6 |
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. |