SDO HMI 2011-08-28 20:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.34 | 5.91 | 0.71 | 3.11 | 19.16 | 312.03 | -15.93 | 50.55 | 0.3369 | -95.2 | -339.4 | |
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back to the solar disc SDO HMI 2011-08-28 20:59:08 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 | 1.34 | 0.00 | 0.70 | 18.72 | 313.22 | -14.74 | 49.64 | 0.3176 | -1056.0 | -738.0 | |
| 0.00 | 2.06 | 0.00 | 1.08 | 19.04 | 312.66 | -15.30 | 49.83 | 0.3279 | -869.0 | -712.0 | |
| 0.00 | 0.99 | 0.00 | 0.52 | 19.39 | 310.99 | -16.97 | 51.70 | 0.3524 | 1020.0 | 823.4 | |
| 1.34 | 1.52 | 0.71 | 0.81 | 19.54 | 310.84 | -17.12 | 51.57 | 0.3557 | 777.0 | 460.5 | |
| 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. | |