SDO HMI 2014-05-21 18:00:38 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 24.03 | 138.40 | 23.14 | 133.56 | -24.86 | 189.97 | 56.53 | 241.94 | 0.8596 | 781.3 | 192.4 | |
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back to the solar disc SDO HMI 2014-05-21 18:00:38 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 |
| 0.45 | 1.44 | 0.42 | 1.34 | -22.77 | 189.06 | 55.62 | 244.11 | 0.8479 | -287.0 | -244.8 | |
| 0.00 | 0.54 | 0.00 | 0.50 | -22.48 | 188.77 | 55.33 | 244.37 | 0.8449 | -277.0 | -402.0 | |
| 23.58 | 136.42 | 22.72 | 131.72 | -24.89 | 189.98 | 56.54 | 241.91 | 0.8598 | 894.6 | 198.8 | |
| 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. | |