SDO HMI 2011-04-25 19:59:06 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.31 | 10.40 | 2.36 | 10.16 | -17.34 | 122.46 | -59.53 | 107.36 | 0.8637 | -54.6 | 99.1 | |
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back to the solar disc SDO HMI 2011-04-25 19:59:06 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 | 2.76 | 0.00 | 2.58 | -17.26 | 124.04 | -57.95 | 107.42 | 0.8504 | 709.0 | 549.4 | |
| 0.00 | 1.07 | 0.00 | 1.00 | -16.88 | 123.93 | -58.06 | 106.96 | 0.8510 | 294.0 | 284.2 | |
| 0.00 | 1.07 | 0.00 | 1.02 | -17.17 | 123.23 | -58.75 | 107.24 | 0.8573 | -146.0 | -129.8 | |
| 0.00 | 0.62 | 0.00 | 0.60 | -17.58 | 122.77 | -59.22 | 107.67 | 0.8615 | 379.0 | 225.6 | |
| 0.00 | 0.62 | 0.00 | 0.61 | -17.44 | 122.60 | -59.39 | 107.49 | 0.8629 | 154.0 | 137.9 | |
| 0.00 | 1.33 | 0.00 | 1.36 | -17.61 | 120.96 | -61.03 | 107.54 | 0.8764 | -580.0 | -498.7 | |
| 2.31 | 2.93 | 2.36 | 2.99 | -17.42 | 120.94 | -61.05 | 107.32 | 0.8765 | -536.6 | -526.9 | |
| 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. | |