SDO HMI 2011-04-30 09:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 29.51 | 193.56 | 32.92 | 206.72 | 18.00 | 62.45 | -58.98 | 67.02 | 0.8850 | -290.1 | -151.8 | |
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back to the solar disc SDO HMI 2011-04-30 09:59:07 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 |
| 8.56 | 166.99 | 8.62 | 168.66 | 18.11 | 64.36 | -57.07 | 66.41 | 0.8725 | -728.4 | -176.4 | |
| 11.95 | -1.00 | 12.06 | -1.00 | 17.70 | 64.15 | -57.28 | 66.93 | 0.8732 | -741.4 | 999999 | |
| 2.85 | 3.48 | 3.22 | 3.92 | 18.67 | 60.75 | -60.68 | 66.82 | 0.9003 | 330.3 | 278.4 | |
| 0.00 | 0.89 | 0.00 | 1.36 | 20.16 | 53.36 | -68.07 | 67.00 | 0.9475 | 285.0 | 254.1 | |
| 6.15 | 22.20 | 9.02 | 32.78 | 18.50 | 53.86 | -67.57 | 68.61 | 0.9429 | 447.0 | -34.5 | |
| 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. | |