SDO HMI 2011-03-04 21:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.11 | 12.18 | 5.84 | 22.54 | 24.83 | 216.04 | 69.18 | 298.33 | 0.9647 | -123.2 | -202.4 | |
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back to the solar disc SDO HMI 2011-03-04 21:58:59 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 |
| 2.42 | 8.81 | 4.68 | 17.00 | 24.79 | 216.83 | 69.97 | 298.08 | 0.9680 | -402.0 | -348.5 | |
| 0.00 | 0.69 | 0.00 | 1.05 | 23.45 | 212.46 | 65.61 | 297.91 | 0.9469 | 274.0 | 301.9 | |
| 0.69 | 1.38 | 1.16 | 2.33 | 25.26 | 214.02 | 67.17 | 299.29 | 0.9571 | 241.6 | 167.1 | |
| 0.00 | 1.30 | 0.00 | 2.16 | 25.33 | 213.76 | 66.91 | 299.43 | 0.9560 | 361.0 | 186.9 | |
| 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. | |