SDO HMI 2011-02-28 09:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.26 | 15.35 | 2.92 | 8.58 | -22.30 | 182.15 | -24.00 | 125.72 | 0.4652 | 243.4 | 306.3 | |
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back to the solar disc SDO HMI 2011-02-28 09:58:58 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 |
| 1.98 | 9.49 | 1.10 | 5.25 | -21.62 | 183.23 | -22.92 | 125.49 | 0.4465 | 939.1 | 832.0 | |
| 3.28 | -1.00 | 1.82 | -1.00 | -21.67 | 183.01 | -23.13 | 125.37 | 0.4497 | 889.8 | 999999 | |
| 0.00 | 1.98 | 0.00 | 1.11 | -23.77 | 182.31 | -23.84 | 128.58 | 0.4750 | 885.0 | 679.7 | |
| 0.00 | 1.29 | 0.00 | 0.74 | -23.14 | 180.30 | -25.85 | 125.52 | 0.4946 | -568.0 | -466.5 | |
| 0.00 | 1.12 | 0.00 | 0.64 | -23.47 | 179.98 | -26.17 | 125.81 | 0.5009 | -635.0 | -474.9 | |
| 0.00 | 1.47 | 0.00 | 0.84 | -22.75 | 179.33 | -26.81 | 123.99 | 0.5038 | -650.0 | -380.4 | |
| 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. | |