SDO HMI 2014-09-28 21:00:33 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 26.01 | 144.16 | 26.57 | 147.46 | -1.05 | 152.13 | -60.65 | 95.02 | 0.8768 | 760.5 | 247.5 | |
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back to the solar disc SDO HMI 2014-09-28 21:00:33 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 |
| 24.51 | 141.08 | 25.03 | 144.10 | -1.06 | 152.19 | -60.59 | 95.04 | 0.8763 | 827.8 | 249.0 | |
| 1.50 | -1.00 | 1.54 | -1.00 | -0.64 | 151.83 | -60.94 | 94.51 | 0.8788 | 364.2 | 999999 | |
| 0.00 | 1.85 | 0.00 | 1.96 | -1.47 | 151.17 | -61.61 | 95.33 | 0.8852 | 243.0 | 179.9 | |
| 0.00 | 1.23 | 0.00 | 1.40 | -2.10 | 149.28 | -63.49 | 95.71 | 0.9005 | 204.0 | 214.6 | |
| 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. | |