SDO HMI 2011-07-25 17:59:11 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.72 | 6.16 | 0.97 | 3.44 | 23.47 | 80.53 | 21.41 | 313.60 | 0.4641 | -733.2 | -617.4 | |
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back to the solar disc SDO HMI 2011-07-25 17:59:11 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 |
| 1.72 | 2.54 | 0.97 | 1.43 | 23.66 | 81.51 | 22.39 | 312.72 | 0.4768 | -705.8 | -630.8 | |
| 0.00 | 1.63 | 0.00 | 0.91 | 23.47 | 80.37 | 21.25 | 313.77 | 0.4622 | -776.0 | -619.1 | |
| 0.00 | 0.72 | 0.00 | 0.40 | 22.54 | 80.18 | 21.06 | 312.39 | 0.4513 | -639.0 | -521.5 | |
| 0.00 | 1.27 | 0.00 | 0.70 | 23.61 | 78.94 | 19.82 | 315.85 | 0.4478 | -811.0 | -661.3 | |
| 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. | |