SDO HMI 2011-10-20 17:59:01 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 39.87 | 242.61 | 46.66 | 284.14 | 27.61 | 54.59 | 64.52 | 297.98 | 0.9076 | -641.3 | -147.2 | |
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back to the solar disc SDO HMI 2011-10-20 17:59:01 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 |
| 7.05 | 239.13 | 8.39 | 280.38 | 27.61 | 55.10 | 65.03 | 297.93 | 0.9109 | 385.7 | -142.2 | |
| 32.82 | -1.00 | 38.27 | -1.00 | 27.60 | 54.52 | 64.45 | 297.98 | 0.9072 | -881.1 | 999999 | |
| 0.00 | 0.44 | 0.00 | 0.47 | 27.49 | 52.22 | 62.15 | 298.17 | 0.8916 | -456.0 | -414.4 | |
| 0.00 | 1.13 | 0.00 | 1.21 | 27.22 | 51.81 | 61.74 | 297.93 | 0.8885 | -569.0 | -513.5 | |
| 0.00 | 1.13 | 0.00 | 1.24 | 28.06 | 52.50 | 62.43 | 298.76 | 0.8942 | -546.0 | -478.2 | |
| 0.00 | 0.78 | 0.00 | 0.84 | 29.00 | 51.64 | 61.57 | 299.94 | 0.8895 | -434.0 | -364.2 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
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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 | |
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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. | |