SDO HMI 2011-01-13 03:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.38 | 24.98 | 1.40 | 14.65 | 22.62 | 76.84 | -18.30 | 32.81 | 0.5374 | 34.0 | -301.7 | |
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back to the solar disc SDO HMI 2011-01-13 03:58:55 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 |
| 2.38 | 13.43 | 1.40 | 7.89 | 23.05 | 77.23 | -17.91 | 31.78 | 0.5394 | -936.5 | -777.1 | |
| 0.00 | 1.44 | 0.00 | 0.83 | 21.15 | 77.18 | -17.96 | 33.97 | 0.5167 | 579.0 | 414.6 | |
| 0.00 | 2.04 | 0.00 | 1.20 | 23.23 | 76.87 | -18.27 | 32.10 | 0.5443 | -642.0 | -484.3 | |
| 0.00 | 2.21 | 0.00 | 1.31 | 23.31 | 76.38 | -18.75 | 32.68 | 0.5490 | -849.0 | -628.2 | |
| 0.00 | 2.72 | 0.00 | 1.58 | 21.30 | 76.09 | -19.05 | 35.33 | 0.5278 | 677.0 | 475.8 | |
| 0.00 | 1.61 | 0.00 | 0.95 | 22.29 | 75.85 | -19.28 | 34.52 | 0.5414 | 834.0 | 696.1 | |
| 0.00 | 1.53 | 0.00 | 0.89 | 21.01 | 76.03 | -19.11 | 35.76 | 0.5249 | 964.0 | 774.6 | |
| 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. | |