SDO HMI 2011-10-09 21:59:02 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.01 | 74.20 | 7.03 | 57.78 | -11.23 | 180.52 | 47.56 | 249.83 | 0.7734 | 525.6 | 351.1 | |
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back to the solar disc SDO HMI 2011-10-09 21:59:02 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 |
| 1.66 | 72.71 | 1.30 | 56.71 | -11.35 | 180.77 | 47.80 | 249.78 | 0.7763 | 575.6 | 369.6 | |
| 6.04 | -1.00 | 4.71 | -1.00 | -11.12 | 180.62 | 47.66 | 250.01 | 0.7741 | 896.3 | 999999 | |
| 1.31 | -1.00 | 1.02 | -1.00 | -11.35 | 180.40 | 47.44 | 249.64 | 0.7726 | 796.3 | 999999 | |
| 0.00 | 1.05 | 0.00 | 0.76 | -11.85 | 176.06 | 43.09 | 247.13 | 0.7280 | -575.0 | -530.2 | |
| 0.00 | 0.44 | 0.00 | 0.31 | -15.65 | 173.49 | 40.53 | 240.92 | 0.7183 | -461.0 | -456.4 | |
| 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. | |