SDO HMI 2011-11-18 16:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 10.46 | 36.73 | 21.68 | 77.06 | 14.42 | 251.83 | -76.41 | 75.76 | 0.9723 | -319.7 | -128.1 | |
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back to the solar disc SDO HMI 2011-11-18 16:58:57 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 |
| 1.97 | 12.10 | 4.20 | 26.70 | 14.88 | 251.52 | -76.72 | 75.29 | 0.9736 | -387.8 | -104.7 | |
| 7.46 | 23.25 | 15.19 | 47.43 | 14.17 | 252.16 | -76.08 | 76.01 | 0.9710 | -366.2 | -158.6 | |
| 0.00 | 0.69 | 0.00 | 1.45 | 14.60 | 251.56 | -76.68 | 75.57 | 0.9734 | -304.0 | -299.9 | |
| 1.03 | -1.00 | 2.29 | -1.00 | 14.82 | 250.89 | -77.35 | 75.36 | 0.9760 | -199.2 | 999999 | |
| 0.00 | 0.69 | 0.00 | 1.48 | 14.13 | 251.26 | -76.98 | 76.06 | 0.9745 | 383.0 | 385.1 | |
| 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. | |