SDO HMI 2011-08-17 07:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.36 | 5.40 | 0.46 | 6.42 | 8.10 | 54.58 | -65.92 | 84.15 | 0.9101 | -132.3 | -156.3 | |
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back to the solar disc SDO HMI 2011-08-17 07:59:09 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 | 1.26 | 0.00 | 1.44 | 8.20 | 55.66 | -64.83 | 84.11 | 0.9023 | -425.0 | -368.3 | |
| 0.00 | 1.80 | 0.00 | 2.07 | 8.43 | 55.45 | -65.05 | 83.85 | 0.9038 | -367.0 | -253.7 | |
| 0.00 | 0.90 | 0.00 | 1.06 | 7.63 | 54.88 | -65.62 | 84.69 | 0.9084 | -157.0 | -153.6 | |
| 0.36 | 1.44 | 0.46 | 1.85 | 7.91 | 52.59 | -67.91 | 84.22 | 0.9241 | 246.0 | 206.6 | |
| 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. | |