SDO HMI 2011-09-07 08:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.45 | 11.16 | 4.81 | 10.53 | -17.56 | 255.97 | 53.47 | 244.17 | 0.8520 | -333.3 | 145.0 | |
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back to the solar disc SDO HMI 2011-09-07 08:59:07 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 |
| 0.00 | 2.68 | 0.00 | 2.81 | -19.45 | 259.17 | 56.67 | 243.34 | 0.8835 | 420.0 | 318.2 | |
| 0.00 | 1.43 | 0.00 | 1.49 | -19.55 | 258.87 | 56.38 | 243.12 | 0.8817 | 471.0 | 402.7 | |
| 5.45 | 6.34 | 4.81 | 5.59 | -15.92 | 253.86 | 51.36 | 245.15 | 0.8299 | -627.4 | -503.0 | |
| 0.00 | 0.71 | 0.00 | 0.64 | -18.88 | 253.55 | 51.05 | 241.71 | 0.8377 | -476.0 | -415.6 | |
| 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. | |