SDO HMI 2013-08-17 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 |
| 38.07 | 218.68 | 27.93 | 160.54 | -7.04 | 139.44 | -45.55 | 106.04 | 0.7395 | 953.5 | 298.0 | |
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back to the solar disc SDO HMI 2013-08-17 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 | 1.44 | 0.00 | 1.03 | -8.59 | 141.44 | -43.55 | 108.88 | 0.7223 | 615.0 | 513.5 | |
| 0.00 | 0.90 | 0.00 | 0.66 | -9.98 | 140.62 | -44.38 | 110.33 | 0.7368 | 443.0 | 257.8 | |
| 0.00 | 1.26 | 0.00 | 0.92 | -9.14 | 140.20 | -44.80 | 109.06 | 0.7383 | 167.0 | 238.6 | |
| 1.35 | 215.08 | 0.99 | 157.93 | -7.57 | 139.43 | -45.57 | 106.73 | 0.7414 | 886.1 | 296.9 | |
| 36.72 | -4.00 | 26.94 | -4.00 | -6.98 | 139.42 | -45.57 | 105.96 | 0.7396 | 1016.7 | 999999 | |
| 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. | |