SDO HMI 2014-03-31 05:00:32 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 3.60 | 0.00 | 2.57 | 4.00 | 139.57 | 45.19 | 281.97 | 0.7257 | 347.4 | 298.6 | |
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back to the solar disc SDO HMI 2014-03-31 05:00:32 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 | 0.79 | 0.00 | 0.58 | 4.43 | 140.74 | 46.36 | 282.19 | 0.7405 | -387.0 | -388.7 | |
| 0.00 | 0.44 | 0.00 | 0.31 | 3.54 | 139.51 | 45.12 | 281.37 | 0.7238 | 515.0 | 389.6 | |
| 0.00 | 0.79 | 0.00 | 0.56 | 3.92 | 139.28 | 44.89 | 281.95 | 0.7221 | 340.0 | 391.8 | |
| 0.00 | 0.70 | 0.00 | 0.50 | 4.06 | 139.16 | 44.78 | 282.18 | 0.7211 | 645.0 | 601.8 | |
| 0.00 | 0.88 | 0.00 | 0.62 | 3.84 | 139.10 | 44.72 | 281.91 | 0.7198 | 624.0 | 564.7 | |
| 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. | |