SDO HMI 2011-12-09 02:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.87 | 0.00 | 3.25 | -18.08 | 78.52 | 19.39 | 225.55 | 0.4437 | -10.8 | 98.0 | |
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back to the solar disc SDO HMI 2011-12-09 02:58:56 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 | 1.19 | 0.00 | 0.67 | -18.06 | 80.62 | 21.48 | 228.46 | 0.4671 | 593.0 | 468.9 | |
| 0.00 | 2.30 | 0.00 | 1.27 | -17.59 | 79.10 | 19.97 | 227.27 | 0.4450 | 896.0 | 647.6 | |
| 0.00 | 1.02 | 0.00 | 0.56 | -18.84 | 77.14 | 18.00 | 222.31 | 0.4364 | -621.0 | -449.7 | |
| 0.00 | 1.36 | 0.00 | 0.75 | -18.34 | 76.69 | 17.56 | 222.44 | 0.4261 | -911.0 | -757.9 | |
| 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. | |