SDO HMI 2011-02-24 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 |
| 5.76 | 26.49 | 11.89 | 53.76 | 15.99 | 178.69 | -72.99 | 71.46 | 0.9706 | 162.2 | 206.4 | |
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back to the solar disc SDO HMI 2011-02-24 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 | 1.63 | 0.00 | 3.32 | 16.66 | 178.80 | -72.87 | 70.76 | 0.9708 | 344.0 | 274.6 | |
| 0.00 | 5.94 | 0.00 | 11.63 | 15.86 | 179.14 | -72.54 | 71.50 | 0.9688 | 529.0 | 385.2 | |
| 2.75 | 7.40 | 6.03 | 16.37 | 17.01 | 177.78 | -73.89 | 70.62 | 0.9750 | -220.2 | -95.1 | |
| 0.00 | 1.63 | 0.00 | 3.23 | 15.54 | 178.91 | -72.77 | 71.87 | 0.9694 | 317.0 | 340.8 | |
| 3.01 | 9.89 | 5.86 | 19.21 | 15.17 | 179.14 | -72.54 | 72.20 | 0.9682 | 435.7 | 234.6 | |
| 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. | |