SDO HMI 2011-12-17 22:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.66 | 0.00 | 4.27 | -19.19 | 323.60 | 20.85 | 227.39 | 0.4601 | -174.2 | -75.9 | |
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back to the solar disc SDO HMI 2011-12-17 22:58:55 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 | 1.87 | 0.00 | 1.05 | -17.44 | 325.63 | 22.88 | 232.85 | 0.4672 | 884.0 | 662.6 | |
| 0.00 | 1.19 | 0.00 | 0.66 | -17.35 | 324.78 | 22.03 | 232.03 | 0.4560 | 843.0 | 654.4 | |
| 0.00 | 0.94 | 0.00 | 0.54 | -22.75 | 324.28 | 21.53 | 222.57 | 0.5024 | -762.0 | -594.5 | |
| 0.00 | 1.02 | 0.00 | 0.58 | -23.24 | 323.13 | 20.38 | 220.38 | 0.4959 | -440.0 | -456.9 | |
| 0.00 | 0.94 | 0.00 | 0.51 | -17.96 | 321.48 | 18.73 | 226.57 | 0.4224 | -850.0 | -731.3 | |
| 0.00 | 1.70 | 0.00 | 0.93 | -18.54 | 321.51 | 18.76 | 225.57 | 0.4289 | -720.0 | -529.5 | |
| 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. | |