SDO HMI 2013-09-18 17:59:04 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 32.08 | 194.19 | 43.88 | 265.65 | -17.60 | 59.08 | -64.90 | 112.08 | 0.9330 | 528.2 | 124.4 | |
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back to the solar disc SDO HMI 2013-09-18 17:59:04 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 |
| 27.12 | 187.73 | 36.54 | 254.47 | -17.62 | 59.38 | -64.60 | 112.18 | 0.9314 | 734.9 | 138.0 | |
| 3.72 | -1.00 | 5.14 | -1.00 | -17.72 | 58.78 | -65.20 | 112.13 | 0.9350 | -141.4 | 999999 | |
| 0.00 | 1.15 | 0.00 | 1.78 | -18.54 | 56.48 | -67.51 | 112.38 | 0.9487 | -440.0 | -331.4 | |
| 0.00 | 0.62 | 0.00 | 1.05 | -16.20 | 54.17 | -69.81 | 109.43 | 0.9570 | -471.0 | -411.3 | |
| 0.00 | 1.06 | 0.00 | 1.90 | -16.83 | 53.16 | -70.82 | 109.85 | 0.9624 | -88.0 | -153.6 | |
| 1.24 | 3.63 | 2.20 | 6.45 | -16.43 | 53.32 | -70.66 | 109.48 | 0.9612 | -165.1 | -112.4 | |
| 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. | |