SDO HMI 2011-07-17 11:59:11 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 45.39 | 261.52 | 22.99 | 132.50 | 16.44 | 169.27 | 0.99 | 355.43 | 0.2082 | -1281.1 | -403.9 | |
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back to the solar disc SDO HMI 2011-07-17 11:59:11 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 |
| 33.04 | 261.52 | 16.74 | 132.50 | 16.50 | 169.31 | 1.03 | 355.27 | 0.2092 | -1296.5 | -403.9 | |
| 8.90 | -1.00 | 4.50 | -1.00 | 16.10 | 169.25 | 0.96 | 355.41 | 0.2022 | -1367.6 | 999999 | |
| 2.36 | -1.00 | 1.20 | -1.00 | 16.91 | 169.00 | 0.71 | 356.83 | 0.2158 | -850.2 | 999999 | |
| 1.09 | -1.00 | 0.55 | -1.00 | 16.53 | 168.87 | 0.58 | 357.32 | 0.2092 | -1041.7 | 999999 | |
| 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. | |