SDO HMI 2011-04-25 21:59:06 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.78 | 10.31 | 5.57 | 9.93 | -17.42 | 121.87 | -59.01 | 107.51 | 0.8595 | -179.9 | -194.4 | |
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back to the solar disc SDO HMI 2011-04-25 21:59:06 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 |
| 1.78 | 2.31 | 1.61 | 2.09 | -17.24 | 124.17 | -56.71 | 107.54 | 0.8394 | 594.6 | 480.7 | |
| 0.00 | 0.98 | 0.00 | 0.92 | -17.63 | 122.86 | -58.02 | 107.84 | 0.8514 | 357.0 | 285.4 | |
| 0.00 | 1.33 | 0.00 | 1.30 | -17.18 | 121.37 | -59.51 | 107.18 | 0.8637 | -520.0 | -479.1 | |
| 0.98 | 5.69 | 0.97 | 5.62 | -17.65 | 120.99 | -59.89 | 107.69 | 0.8673 | -549.4 | -431.7 | |
| 3.02 | -4.00 | 2.99 | -4.00 | -17.46 | 120.96 | -59.92 | 107.47 | 0.8673 | -542.8 | 999999 | |
| 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. | |