SDO HMI 2011-03-04 17:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.32 | 0.00 | 2.59 | -24.12 | 180.18 | 31.12 | 236.93 | 0.5653 | -545.5 | -463.0 | |
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back to the solar disc SDO HMI 2011-03-04 17:58:59 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 | 0.47 | -23.34 | 180.89 | 31.83 | 238.68 | 0.5691 | -652.0 | -525.8 | |
| 0.00 | 1.38 | 0.00 | 0.83 | -23.35 | 180.66 | 31.61 | 238.51 | 0.5664 | -160.0 | -319.7 | |
| 0.00 | 1.04 | 0.00 | 0.62 | -24.06 | 180.28 | 31.23 | 237.11 | 0.5659 | -694.0 | -478.4 | |
| 0.00 | 1.12 | 0.00 | 0.67 | -25.68 | 178.98 | 29.92 | 233.59 | 0.5607 | -676.0 | -582.0 | |
| 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. | |