SDO HMI 2014-05-20 02:00:38 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.45 | 5.40 | 0.33 | 3.97 | -23.68 | 111.48 | -43.99 | 120.65 | 0.7414 | 31.4 | 128.0 | |
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back to the solar disc SDO HMI 2014-05-20 02:00:38 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 | 0.99 | 0.00 | 0.71 | -23.64 | 112.91 | -42.57 | 121.24 | 0.7271 | -451.0 | -381.1 | |
| 0.00 | 0.81 | 0.00 | 0.57 | -21.70 | 113.30 | -42.17 | 118.88 | 0.7147 | 751.0 | 626.6 | |
| 0.45 | 1.62 | 0.33 | 1.18 | -23.15 | 111.65 | -43.82 | 120.06 | 0.7379 | -605.4 | -457.7 | |
| 0.00 | 1.98 | 0.00 | 1.51 | -24.86 | 110.00 | -45.47 | 121.51 | 0.7610 | 641.0 | 511.9 | |
| 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. | |