SDO HMI 2011-04-24 23:59:06 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.24 | 4.98 | 0.69 | 2.75 | 16.09 | 177.23 | -15.76 | 36.44 | 0.4414 | -342.9 | -396.7 | |
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back to the solar disc SDO HMI 2011-04-24 23:59:06 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 | 2.04 | 0.00 | 1.13 | 16.51 | 177.44 | -15.55 | 35.48 | 0.4446 | -797.0 | -617.4 | |
| 0.00 | 1.07 | 0.00 | 0.59 | 16.09 | 177.28 | -15.71 | 36.34 | 0.4409 | -600.0 | -577.2 | |
| 1.24 | 1.87 | 0.69 | 1.03 | 15.62 | 176.96 | -16.03 | 37.56 | 0.4381 | 688.0 | 641.0 | |
| 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. | |