SDO HMI 2011-08-04 17:59:10 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.14 | 19.25 | 5.18 | 14.08 | -16.27 | 244.63 | -42.23 | 118.69 | 0.7377 | 336.7 | 11.4 | |
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back to the solar disc SDO HMI 2011-08-04 17:59:10 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 | 1.99 | 0.00 | 1.43 | -16.09 | 245.49 | -41.36 | 118.94 | 0.7278 | 773.0 | 601.9 | |
| 5.33 | 6.69 | 3.86 | 4.84 | -16.44 | 245.28 | -41.58 | 119.25 | 0.7318 | 745.3 | 623.4 | |
| 1.81 | 5.06 | 1.32 | 3.70 | -16.72 | 244.99 | -41.87 | 119.43 | 0.7362 | 406.2 | 414.9 | |
| 0.00 | 2.44 | 0.00 | 1.80 | -16.20 | 244.01 | -42.85 | 118.27 | 0.7438 | -772.0 | -573.4 | |
| 0.00 | 3.07 | 0.00 | 2.31 | -15.33 | 242.62 | -44.23 | 116.49 | 0.7539 | -660.0 | -574.7 | |
| 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. | |