SDO HMI 2011-04-30 16:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 39.04 | 218.95 | 38.82 | 211.66 | 17.94 | 62.07 | -55.51 | 66.05 | 0.8579 | -328.3 | -175.1 | |
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back to the solar disc SDO HMI 2011-04-30 16:59:07 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 |
| 12.12 | 182.50 | 11.06 | 167.12 | 17.97 | 64.19 | -53.39 | 65.40 | 0.8420 | -865.9 | -218.2 | |
| 15.42 | -1.00 | 14.13 | -1.00 | 17.60 | 63.86 | -53.72 | 65.92 | 0.8437 | -842.2 | 999999 | |
| 0.00 | 1.07 | 0.00 | 1.08 | 18.46 | 60.47 | -57.11 | 66.04 | 0.8736 | 408.0 | 375.3 | |
| 3.21 | 4.72 | 3.28 | 4.83 | 18.49 | 60.04 | -57.54 | 66.14 | 0.8770 | 288.2 | 267.0 | |
| 0.00 | 1.25 | 0.00 | 1.47 | 19.26 | 55.83 | -61.75 | 66.48 | 0.9088 | 365.0 | 311.4 | |
| 0.00 | 2.14 | 0.00 | 2.80 | 20.45 | 53.26 | -64.32 | 65.86 | 0.9270 | 273.0 | 158.7 | |
| 0.00 | 0.98 | 0.00 | 1.24 | 18.95 | 53.71 | -63.87 | 67.33 | 0.9219 | 80.0 | 107.0 | |
| 8.29 | 26.29 | 10.35 | 33.12 | 18.44 | 53.98 | -63.60 | 67.80 | 0.9194 | 516.9 | -50.5 | |
| 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. | |