SDO HMI 2011-10-19 21:59:01 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.12 | 128.84 | 14.77 | 94.47 | -26.89 | 36.85 | 35.80 | 225.09 | 0.7389 | 895.8 | 288.4 | |
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back to the solar disc SDO HMI 2011-10-19 21:59:01 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 |
| 20.12 | 124.92 | 14.77 | 91.78 | -26.93 | 36.96 | 35.91 | 225.14 | 0.7401 | 1009.5 | 284.2 | |
| 0.00 | 0.78 | 0.00 | 0.55 | -26.57 | 33.92 | 32.87 | 223.15 | 0.7120 | 535.0 | 426.2 | |
| 0.00 | 0.96 | 0.00 | 0.67 | -26.51 | 33.38 | 32.33 | 222.78 | 0.7070 | 402.0 | 347.4 | |
| 0.00 | 1.22 | 0.00 | 0.80 | -22.53 | 32.14 | 31.09 | 226.18 | 0.6633 | 743.0 | 608.0 | |
| 0.00 | 0.96 | 0.00 | 0.67 | -27.74 | 32.75 | 31.70 | 220.95 | 0.7120 | 224.0 | 220.7 | |
| 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. | |