SDO HMI 2011-05-30 09:59:10 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 18.05 | 51.29 | 17.61 | 50.19 | -18.22 | 26.57 | -58.11 | 110.70 | 0.8641 | 656.0 | 300.5 | |
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back to the solar disc SDO HMI 2011-05-30 09:59:10 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 |
| 15.89 | 41.27 | 15.42 | 40.09 | -18.06 | 26.80 | -57.88 | 110.56 | 0.8620 | 697.3 | 256.0 | |
| 0.00 | 0.99 | 0.00 | 0.99 | -18.56 | 26.10 | -58.58 | 111.00 | 0.8685 | 409.0 | 333.2 | |
| 1.26 | 3.25 | 1.27 | 3.27 | -18.91 | 25.78 | -58.90 | 111.34 | 0.8716 | 636.6 | 577.4 | |
| 0.00 | 1.81 | 0.00 | 1.81 | -18.59 | 25.77 | -58.91 | 110.97 | 0.8712 | 571.0 | 488.9 | |
| 0.90 | 3.97 | 0.92 | 4.03 | -18.97 | 25.37 | -59.32 | 111.32 | 0.8750 | 349.8 | 354.9 | |
| 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. | |