SDO HMI 2011-03-04 17:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.34 | 23.73 | 11.75 | 39.53 | 24.73 | 215.98 | 66.92 | 298.83 | 0.9549 | -136.4 | -65.3 | |
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back to the solar disc SDO HMI 2011-03-04 17:58:59 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 |
| 2.85 | 18.39 | 4.86 | 31.65 | 24.67 | 216.66 | 67.60 | 298.58 | 0.9580 | -397.2 | -106.8 | |
| 1.55 | -1.00 | 2.64 | -1.00 | 24.92 | 216.51 | 67.45 | 298.87 | 0.9578 | -568.4 | 999999 | |
| 1.90 | 2.50 | 2.65 | 3.49 | 23.54 | 212.59 | 63.53 | 298.61 | 0.9364 | 385.8 | 265.0 | |
| 1.04 | 2.24 | 1.60 | 3.47 | 25.50 | 214.24 | 65.18 | 300.09 | 0.9483 | 126.2 | 84.5 | |
| 0.00 | 0.60 | 0.00 | 0.92 | 25.40 | 213.98 | 64.92 | 300.07 | 0.9469 | 467.0 | 414.1 | |
| 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. | |