SDO HMI 2011-10-18 18:59:01 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.40 | 0.00 | 3.41 | -32.51 | 19.12 | 3.22 | 184.45 | 0.6213 | -609.2 | -521.2 | |
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back to the solar disc SDO HMI 2011-10-18 18:59:01 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 | 0.78 | 0.00 | 0.48 | -29.38 | 21.01 | 5.11 | 187.71 | 0.5808 | -754.0 | -588.0 | |
| 0.00 | 2.09 | 0.00 | 1.33 | -33.11 | 19.32 | 3.42 | 184.57 | 0.6298 | -718.0 | -552.3 | |
| 0.00 | 0.87 | 0.00 | 0.55 | -33.14 | 18.57 | 2.67 | 183.57 | 0.6296 | -545.0 | -485.1 | |
| 0.00 | 1.05 | 0.00 | 0.65 | -30.91 | 18.50 | 2.61 | 183.75 | 0.5988 | -528.0 | -496.5 | |
| 0.00 | 0.61 | 0.00 | 0.40 | -36.00 | 17.92 | 2.03 | 182.47 | 0.6672 | -501.0 | -429.1 | |
| 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. | |