SDO HMI 2014-04-17 07:00:34 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 38.26 | 257.56 | 29.24 | 196.94 | 11.93 | 275.63 | 46.71 | 290.72 | 0.7638 | -1042.9 | -291.2 | |
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back to the solar disc SDO HMI 2014-04-17 07:00:34 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 |
| 38.26 | 256.06 | 29.24 | 195.84 | 11.93 | 275.65 | 46.73 | 290.71 | 0.7640 | -1116.9 | -292.1 | |
| 0.00 | 0.97 | 0.00 | 0.72 | 11.52 | 273.79 | 44.87 | 290.95 | 0.7426 | -519.0 | -522.7 | |
| 0.00 | 0.53 | 0.00 | 0.38 | 13.61 | 270.62 | 41.70 | 295.11 | 0.7164 | 596.0 | 531.3 | |
| 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. | |