SDO HMI 2014-04-18 12:00:34 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 29.24 | 181.52 | 34.19 | 212.45 | 11.77 | 275.94 | 62.97 | 285.66 | 0.9074 | -632.4 | -114.0 | |
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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 |
| 0.00 | 1.68 | 0.00 | 2.04 | 10.86 | 277.13 | 64.16 | 284.43 | 0.9144 | 428.0 | 399.5 | |
| 29.24 | 177.36 | 34.19 | 207.75 | 11.76 | 275.96 | 62.99 | 285.64 | 0.9076 | -711.5 | -123.7 | |
| 0.00 | 1.24 | 0.00 | 1.32 | 12.46 | 273.05 | 60.08 | 287.08 | 0.8872 | -134.0 | -236.6 | |
| 0.00 | 1.24 | 0.00 | 1.34 | 13.72 | 273.13 | 60.16 | 288.45 | 0.8902 | 515.0 | 476.5 | |
| 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. | |