SDO HMI 2011-04-28 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 |
| 0.36 | 10.25 | 0.24 | 6.69 | 15.47 | 176.97 | 35.73 | 300.18 | 0.6528 | 121.2 | 88.9 | |
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back to the solar disc SDO HMI 2011-04-28 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 |
| 0.00 | 1.69 | 0.00 | 1.14 | 15.06 | 179.62 | 38.38 | 297.91 | 0.6807 | -661.0 | -515.8 | |
| 0.36 | 1.60 | 0.24 | 1.08 | 15.36 | 179.36 | 38.12 | 298.47 | 0.6795 | -713.8 | -630.2 | |
| 0.00 | 1.07 | 0.00 | 0.72 | 15.39 | 179.17 | 37.93 | 298.61 | 0.6774 | -600.0 | -476.3 | |
| 0.00 | 1.25 | 0.00 | 0.81 | 15.47 | 176.26 | 35.02 | 300.59 | 0.6447 | 451.0 | 406.1 | |
| 0.00 | 1.07 | 0.00 | 0.68 | 14.74 | 174.91 | 33.67 | 300.50 | 0.6245 | 751.0 | 653.3 | |
| 0.00 | 1.25 | 0.00 | 0.80 | 16.96 | 175.07 | 33.83 | 303.49 | 0.6407 | 592.0 | 541.3 | |
| 0.00 | 1.16 | 0.00 | 0.73 | 15.32 | 174.41 | 33.17 | 301.70 | 0.6225 | 793.0 | 689.8 | |
| 0.00 | 1.16 | 0.00 | 0.73 | 15.52 | 174.45 | 33.21 | 301.94 | 0.6241 | 558.0 | 443.6 | |
| 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. | |