SDO HMI 2011-02-25 22:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.35 | 10.40 | 3.10 | 9.56 | -22.45 | 180.83 | -57.67 | 112.11 | 0.8450 | 69.1 | 8.0 | |
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back to the solar disc SDO HMI 2011-02-25 22:58:58 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 | 0.86 | 0.00 | 0.78 | -22.94 | 181.38 | -57.12 | 112.75 | 0.8408 | 270.0 | 266.3 | |
| 0.00 | 1.46 | 0.00 | 1.33 | -22.61 | 181.24 | -57.27 | 112.34 | 0.8417 | 385.0 | 296.2 | |
| 0.00 | 0.77 | 0.00 | 0.71 | -22.84 | 181.03 | -57.48 | 112.59 | 0.8438 | -346.0 | -285.9 | |
| 2.15 | 4.73 | 1.97 | 4.33 | -22.02 | 180.96 | -57.54 | 111.61 | 0.8435 | 348.4 | 113.8 | |
| 1.20 | 2.58 | 1.13 | 2.41 | -22.88 | 180.15 | -58.36 | 112.53 | 0.8513 | -507.8 | -480.9 | |
| 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. | |