SDO HMI 2010-12-31 14:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.53 | 154.65 | 41.04 | 273.90 | 31.19 | 191.58 | -68.74 | 56.23 | 0.9602 | -334.0 | -73.0 | |
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back to the solar disc SDO HMI 2010-12-31 14:58:55 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 |
| 16.14 | 153.72 | 27.91 | 271.94 | 31.18 | 191.76 | -68.56 | 56.21 | 0.9595 | -621.4 | -74.7 | |
| 7.39 | -1.00 | 13.13 | -1.00 | 31.24 | 191.28 | -69.04 | 56.25 | 0.9615 | 241.1 | 999999 | |
| 0.00 | 0.93 | 0.00 | 1.96 | 30.22 | 187.98 | -72.34 | 57.92 | 0.9728 | 137.0 | 127.6 | |
| 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. | |