SDO HMI 2011-12-19 23:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.52 | 59.02 | 20.76 | 129.77 | -18.83 | 352.44 | 76.59 | 251.00 | 0.9747 | 302.6 | 102.6 | |
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back to the solar disc SDO HMI 2011-12-19 23:58:55 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 |
| 2.55 | 58.59 | 5.69 | 128.95 | -18.85 | 352.77 | 76.92 | 251.00 | 0.9760 | -260.0 | 101.7 | |
| 6.97 | -1.00 | 15.07 | -1.00 | -18.83 | 352.33 | 76.48 | 251.00 | 0.9743 | 519.2 | 999999 | |
| 0.00 | 0.43 | 0.00 | 0.82 | -18.28 | 350.57 | 74.72 | 251.47 | 0.9673 | 240.0 | 230.0 | |
| 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. | |