SDO HMI 2011-12-13 14:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 11.32 | 21.19 | 31.65 | 61.74 | -18.29 | 79.61 | 79.74 | 251.54 | 0.9857 | 490.1 | 216.7 | |
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back to the solar disc SDO HMI 2011-12-13 14:58:55 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 |
| 0.00 | 2.38 | 0.00 | 7.72 | -16.55 | 80.92 | 81.04 | 253.36 | 0.9890 | 204.0 | 144.4 | |
| 0.00 | 1.87 | 0.00 | 6.65 | -17.16 | 81.54 | 81.66 | 252.76 | 0.9905 | 371.0 | 342.8 | |
| 11.32 | 15.66 | 31.65 | 44.10 | -18.71 | 79.19 | 79.32 | 251.10 | 0.9846 | 522.3 | 251.7 | |
| 0.00 | 1.28 | 0.00 | 3.27 | -19.06 | 78.32 | 78.45 | 250.70 | 0.9821 | -123.0 | -1.9 | |
| 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. | |