SDO HMI 2014-04-08 17:00:33 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.83 | 0.00 | 2.47 | -16.32 | 350.84 | 8.60 | 219.82 | 0.2435 | -892.8 | -728.2 | |
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back to the solar disc SDO HMI 2014-04-08 17:00:33 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 | 1.67 | 0.00 | 0.87 | -17.92 | 355.97 | 13.73 | 227.34 | 0.3084 | -1014.0 | -856.7 | |
| 0.00 | 1.14 | 0.00 | 0.57 | -9.60 | 350.69 | 8.44 | 246.70 | 0.1583 | -841.0 | -719.5 | |
| 0.00 | 0.88 | 0.00 | 0.45 | -17.21 | 349.40 | 7.15 | 211.55 | 0.2284 | -857.0 | -708.9 | |
| 0.00 | 1.14 | 0.00 | 0.58 | -19.83 | 344.41 | 2.17 | 188.53 | 0.2414 | -859.0 | -559.8 | |
| 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. | |