SDO HMI 2011-10-07 15:59:03 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.46 | 0.00 | 4.11 | -12.70 | 145.41 | -17.26 | 138.22 | 0.4365 | -388.0 | -42.5 | |
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back to the solar disc SDO HMI 2011-10-07 15:59:03 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 | 3.42 | 0.00 | 1.87 | -13.61 | 147.66 | -15.01 | 143.35 | 0.4234 | 911.0 | 686.4 | |
| 0.00 | 2.11 | 0.00 | 1.16 | -12.22 | 144.64 | -18.02 | 136.05 | 0.4376 | -803.0 | -643.8 | |
| 0.00 | 0.88 | 0.00 | 0.49 | -12.57 | 143.77 | -18.89 | 135.27 | 0.4509 | -847.0 | -749.4 | |
| 0.00 | 1.05 | 0.00 | 0.59 | -10.85 | 141.13 | -21.53 | 128.69 | 0.4637 | -813.0 | -589.9 | |
| 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. | |