SDO HMI 2011-08-20 15:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.76 | 0.00 | 3.97 | -18.50 | 113.14 | 36.70 | 234.40 | 0.6993 | -572.2 | -509.3 | |
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back to the solar disc SDO HMI 2011-08-20 15:59:09 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 | 1.17 | 0.00 | 0.81 | -18.80 | 113.56 | 37.12 | 234.32 | 0.7056 | -430.0 | -402.3 | |
| 0.00 | 1.71 | 0.00 | 1.18 | -18.40 | 113.05 | 36.61 | 234.46 | 0.6978 | -647.0 | -653.6 | |
| 0.00 | 1.26 | 0.00 | 0.87 | -18.64 | 113.11 | 36.67 | 234.21 | 0.7000 | -550.0 | -456.6 | |
| 0.00 | 1.62 | 0.00 | 1.11 | -18.26 | 112.94 | 36.50 | 234.55 | 0.6957 | -662.0 | -475.9 | |
| 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. | |