SDO HMI 2011-04-30 01:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 14.79 | 30.67 | 12.83 | 26.89 | 15.56 | 178.27 | 52.45 | 292.20 | 0.8268 | 34.5 | -269.2 | |
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back to the solar disc SDO HMI 2011-04-30 01:59:07 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 |
| 1.60 | 3.57 | 1.46 | 3.25 | 15.57 | 179.92 | 54.10 | 291.68 | 0.8418 | -463.1 | -368.5 | |
| 5.35 | 14.35 | 4.78 | 12.82 | 15.71 | 179.02 | 53.20 | 292.12 | 0.8342 | -372.9 | -409.6 | |
| 0.00 | 1.07 | 0.00 | 0.95 | 16.15 | 178.45 | 52.63 | 292.82 | 0.8304 | -283.0 | -229.8 | |
| 0.00 | 1.25 | 0.00 | 1.10 | 16.27 | 178.34 | 52.52 | 293.00 | 0.8297 | -267.0 | -195.8 | |
| 7.84 | 10.43 | 6.59 | 8.77 | 15.17 | 176.52 | 50.71 | 292.34 | 0.8097 | 534.1 | 275.3 | |
| 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. | |