SDO HMI 2011-02-17 02:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.60 | 10.29 | 5.52 | 19.25 | 19.10 | 65.85 | 71.00 | 292.10 | 0.9639 | 186.9 | -27.4 | |
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back to the solar disc SDO HMI 2011-02-17 02:58:57 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 | 3.95 | 0.00 | 9.19 | 18.37 | 69.39 | 74.54 | 290.57 | 0.9780 | -251.0 | -77.9 | |
| 0.00 | 1.03 | 0.00 | 1.93 | 18.31 | 66.18 | 71.34 | 291.17 | 0.9658 | -361.0 | -276.2 | |
| 1.11 | 1.54 | 1.74 | 2.40 | 20.15 | 62.14 | 67.30 | 294.00 | 0.9495 | 232.8 | 275.4 | |
| 2.49 | 3.77 | 3.78 | 5.73 | 20.09 | 61.60 | 66.76 | 294.08 | 0.9466 | 426.6 | 353.7 | |
| 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. | |