SDO HMI 2011-10-30 08:59:00 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 18.38 | 55.13 | 10.20 | 30.64 | 30.79 | 216.28 | -6.85 | 12.97 | 0.4562 | -955.6 | -471.2 | |
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back to the solar disc SDO HMI 2011-10-30 08:59:00 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 |
| 18.38 | 52.79 | 10.20 | 29.29 | 30.70 | 216.57 | -6.56 | 12.57 | 0.4535 | -1141.3 | -511.4 | |
| 0.00 | 1.04 | 0.00 | 0.59 | 31.70 | 213.64 | -9.50 | 17.08 | 0.4800 | -665.0 | -496.3 | |
| 0.00 | 1.30 | 0.00 | 0.76 | 33.52 | 207.06 | -16.07 | 25.38 | 0.5407 | 647.0 | 552.1 | |
| 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. | |