SDO HMI 2011-02-16 17:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 10.62 | 21.25 | 15.30 | 30.04 | 19.48 | 65.09 | 65.30 | 293.89 | 0.9368 | 91.7 | 222.5 | |
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back to the solar disc SDO HMI 2011-02-16 17:58:57 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 |
| 4.28 | 6.00 | 7.28 | 10.22 | 18.42 | 69.35 | 69.56 | 291.68 | 0.9580 | -288.5 | -65.6 | |
| 0.00 | 1.03 | 0.00 | 1.73 | 18.71 | 69.07 | 69.28 | 292.04 | 0.9570 | -353.0 | -322.4 | |
| 0.00 | 0.94 | 0.00 | 1.30 | 19.42 | 64.61 | 64.82 | 293.90 | 0.9351 | 220.0 | 169.2 | |
| 1.89 | 13.28 | 2.40 | 16.79 | 20.14 | 62.34 | 62.55 | 295.29 | 0.9232 | 436.2 | 434.3 | |
| 2.14 | -4.00 | 2.73 | -4.00 | 20.35 | 62.22 | 62.43 | 295.55 | 0.9229 | 378.3 | 999999 | |
| 2.31 | -4.00 | 2.89 | -4.00 | 20.12 | 61.85 | 62.06 | 295.42 | 0.9201 | 602.5 | 999999 | |
| 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. | |