SDO HMI 2011-04-30 00:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 19.08 | 166.93 | 24.64 | 214.73 | 18.01 | 61.99 | -64.38 | 68.33 | 0.9214 | -403.6 | -163.7 | |
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back to the solar disc SDO HMI 2011-04-30 00:59:07 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 |
| 4.37 | 140.82 | 5.10 | 164.78 | 18.19 | 64.55 | -61.82 | 67.60 | 0.9075 | -739.1 | -213.6 | |
| 10.61 | -1.00 | 12.40 | -1.00 | 17.75 | 64.42 | -61.95 | 68.11 | 0.9076 | -677.8 | 999999 | |
| 0.89 | -1.00 | 1.05 | -1.00 | 18.00 | 64.13 | -62.24 | 67.92 | 0.9100 | 176.5 | 999999 | |
| 3.21 | 26.11 | 6.09 | 49.95 | 18.44 | 53.90 | -72.47 | 69.57 | 0.9665 | 335.5 | 2.8 | |
| 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. | |