SDO HMI 2011-09-01 02:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.72 | 134.03 | 12.37 | 69.91 | 18.58 | 299.58 | 14.55 | 310.21 | 0.3130 | -1203.8 | -454.5 | |
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back to the solar disc SDO HMI 2011-09-01 02:59:08 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 |
| 22.20 | 131.52 | 11.58 | 68.62 | 18.60 | 299.64 | 14.61 | 310.13 | 0.3140 | -1225.9 | -445.8 | |
| 1.52 | -1.00 | 0.79 | -1.00 | 18.36 | 299.36 | 14.33 | 310.03 | 0.3081 | -1067.6 | 999999 | |
| 0.00 | 2.51 | 0.00 | 1.29 | 18.39 | 297.17 | 12.13 | 314.61 | 0.2814 | -1055.0 | -832.9 | |
| 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. | |