SDO HMI 2013-03-07 21:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.02 | 0.00 | 2.95 | 19.84 | 160.97 | -18.05 | 32.69 | 0.5379 | 3.8 | 113.9 | |
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back to the solar disc SDO HMI 2013-03-07 21:58:58 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 | 0.78 | 0.00 | 0.45 | 20.65 | 164.97 | -14.04 | 26.05 | 0.5191 | -365.0 | -392.4 | |
| 0.00 | 1.04 | 0.00 | 0.58 | 16.90 | 164.23 | -14.79 | 31.08 | 0.4752 | -700.0 | -615.4 | |
| 0.00 | 0.52 | 0.00 | 0.29 | 16.88 | 164.07 | -14.95 | 31.38 | 0.4761 | -394.0 | -510.2 | |
| 0.00 | 1.30 | 0.00 | 0.79 | 21.31 | 158.17 | -20.84 | 35.17 | 0.5777 | 577.0 | 471.3 | |
| 0.00 | 1.38 | 0.00 | 0.84 | 21.07 | 158.14 | -20.88 | 35.47 | 0.5753 | 901.0 | 777.8 | |
| 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. | |