SDO HMI 2011-08-30 23:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.95 | 33.57 | 20.33 | 32.38 | 18.31 | 359.63 | 59.74 | 287.09 | 0.8598 | -458.0 | -209.0 | |
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back to the solar disc SDO HMI 2011-08-30 23:59:08 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 |
| 20.95 | 28.38 | 20.33 | 27.57 | 18.30 | 359.88 | 59.99 | 287.06 | 0.8620 | -624.9 | -403.4 | |
| 0.00 | 0.63 | 0.00 | 0.60 | 19.02 | 359.66 | 59.77 | 287.90 | 0.8604 | -516.0 | -490.1 | |
| 0.00 | 0.81 | 0.00 | 0.75 | 18.60 | 358.54 | 58.65 | 287.48 | 0.8506 | 396.0 | 348.7 | |
| 0.00 | 1.16 | 0.00 | 1.07 | 17.63 | 357.84 | 57.95 | 286.38 | 0.8440 | 240.0 | 215.7 | |
| 0.00 | 0.36 | 0.00 | 0.33 | 17.59 | 357.64 | 57.75 | 286.34 | 0.8422 | 428.0 | 331.2 | |
| 0.00 | 1.07 | 0.00 | 1.01 | 19.42 | 358.57 | 58.68 | 288.44 | 0.8513 | -434.0 | -392.0 | |
| 0.00 | 1.16 | 0.00 | 1.05 | 17.89 | 357.19 | 57.30 | 286.72 | 0.8383 | 532.0 | 467.6 | |
| 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. | |