SDO HMI 2011-08-28 14:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.44 | 0.00 | 4.83 | 18.39 | 0.17 | 28.89 | 294.67 | 0.5064 | -732.7 | -641.3 | |
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back to the solar disc SDO HMI 2011-08-28 14:59:08 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 | 0.90 | 0.00 | 0.52 | 18.02 | 2.02 | 30.74 | 292.96 | 0.5300 | -679.0 | -572.2 | |
| 0.00 | 1.08 | 0.00 | 0.62 | 17.73 | 1.71 | 30.43 | 292.59 | 0.5245 | -705.0 | -618.6 | |
| 0.00 | 0.63 | 0.00 | 0.36 | 17.67 | 0.63 | 29.35 | 293.03 | 0.5095 | -702.0 | -491.3 | |
| 0.00 | 0.90 | 0.00 | 0.52 | 18.48 | 0.60 | 29.32 | 294.57 | 0.5126 | -687.0 | -619.1 | |
| 0.00 | 2.96 | 0.00 | 1.69 | 18.52 | 359.44 | 28.16 | 295.33 | 0.4970 | -663.0 | -601.9 | |
| 0.00 | 1.97 | 0.00 | 1.12 | 18.90 | 359.22 | 27.94 | 296.20 | 0.4959 | -960.0 | -803.5 | |
| 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. | |