group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
17.43 | 47.78 | 9.23 | 25.59 | -3.67 | 159.85 | -20.49 | 112.11 | 0.3778 | 707.3 | 488.0 |
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back to the solar disc SDO HMI 2014-10-28 15:00:29 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 |
9.28 | 32.52 | 4.91 | 17.23 | -3.41 | 161.30 | -19.04 | 112.82 | 0.3548 | 1263.9 | 578.2 | |
8.15 | -1.00 | 4.32 | -1.00 | -3.41 | 161.02 | -19.32 | 112.53 | 0.3592 | 1041.4 | 999999 | |
0.00 | 3.04 | 0.00 | 1.60 | -1.17 | 160.77 | -19.57 | 106.32 | 0.3505 | 857.0 | 659.6 | |
0.00 | 0.95 | 0.00 | 0.51 | -3.39 | 160.70 | -19.64 | 112.14 | 0.3638 | 568.0 | 435.0 | |
0.00 | 0.35 | 0.00 | 0.19 | -4.94 | 159.41 | -20.93 | 114.54 | 0.3929 | 349.0 | 517.8 | |
0.00 | 1.99 | 0.00 | 1.07 | -4.30 | 159.37 | -20.97 | 113.01 | 0.3894 | 795.0 | 635.3 | |
0.00 | 2.95 | 0.00 | 1.59 | -4.70 | 159.33 | -21.01 | 113.89 | 0.3926 | 692.0 | 651.6 | |
0.00 | 1.21 | 0.00 | 0.66 | -5.41 | 157.62 | -22.72 | 113.82 | 0.4220 | 789.0 | 559.8 | |
0.00 | 2.08 | 0.00 | 1.14 | -5.25 | 157.04 | -23.29 | 112.93 | 0.4294 | 749.0 | 588.2 | |
0.00 | 0.87 | 0.00 | 0.51 | -5.98 | 148.87 | -31.47 | 108.50 | 0.5497 | -588.0 | -386.8 | |
0.00 | 1.04 | 0.00 | 0.62 | -5.60 | 148.54 | -31.80 | 107.66 | 0.5525 | -598.0 | -471.7 | |
0.00 | 0.78 | 0.00 | 0.47 | -5.50 | 147.45 | -32.89 | 106.92 | 0.5672 | -717.0 | -609.1 |
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. |