SDO HMI 2011-04-30 03:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 25.15 | 172.34 | 30.86 | 207.55 | 18.01 | 62.14 | -62.58 | 67.92 | 0.9100 | -377.3 | -165.3 | |
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back to the solar disc SDO HMI 2011-04-30 03:59:07 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 | 0.80 | 0.00 | 0.80 | 20.40 | 68.59 | -56.13 | 63.57 | 0.8710 | -300.0 | -324.1 | |
| 5.44 | 143.19 | 6.02 | 158.96 | 18.16 | 64.55 | -60.17 | 67.22 | 0.8959 | -804.7 | -210.8 | |
| 13.20 | -2.00 | 14.63 | -2.00 | 17.72 | 64.35 | -60.37 | 67.74 | 0.8965 | -723.9 | 999999 | |
| 2.05 | 3.03 | 2.51 | 3.71 | 18.68 | 61.66 | -63.06 | 67.40 | 0.9165 | 213.9 | 272.2 | |
| 0.00 | 0.98 | 0.00 | 1.72 | 18.96 | 53.73 | -70.98 | 68.79 | 0.9604 | 150.0 | 103.9 | |
| 4.46 | 24.34 | 7.70 | 42.36 | 18.49 | 53.90 | -70.82 | 69.24 | 0.9592 | 344.2 | -8.6 | |
| 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. | |