SDO HMI 2011-12-19 08:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.22 | 0.00 | 4.04 | -18.82 | 321.08 | 36.97 | 241.80 | 0.6484 | -691.2 | -535.0 | |
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back to the solar disc SDO HMI 2011-12-19 08:58:55 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 | 2.81 | 0.00 | 1.85 | -17.77 | 322.80 | 38.69 | 244.27 | 0.6631 | -689.0 | -541.7 | |
| 0.00 | 1.36 | 0.00 | 0.89 | -17.75 | 322.24 | 38.13 | 244.04 | 0.6563 | -800.0 | -508.9 | |
| 0.00 | 0.43 | 0.00 | 0.27 | -20.10 | 317.99 | 33.88 | 238.22 | 0.6182 | -525.0 | -425.8 | |
| 0.00 | 0.60 | 0.00 | 0.38 | -20.32 | 318.05 | 33.94 | 237.93 | 0.6201 | -715.0 | -604.7 | |
| 0.00 | 1.02 | 0.00 | 0.65 | -21.87 | 317.65 | 33.54 | 235.44 | 0.6249 | -727.0 | -556.3 | |
| 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. | |