SDO HMI 2011-12-07 23:58:56 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.84 | 16.88 | 4.30 | 9.26 | -25.13 | 77.93 | 3.97 | 188.33 | 0.4321 | 693.3 | 510.6 | |
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previous
observation for the same group /
back to the solar disc SDO HMI 2011-12-07 23:58:56 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 |
| 4.77 | 6.65 | 2.63 | 3.66 | -25.35 | 78.85 | 4.89 | 190.18 | 0.4377 | 942.9 | 835.2 | |
| 0.00 | 1.53 | 0.00 | 0.86 | -27.06 | 78.73 | 4.76 | 189.22 | 0.4637 | -556.0 | -370.6 | |
| 3.07 | 3.58 | 1.67 | 1.95 | -24.50 | 77.58 | 3.62 | 187.87 | 0.4213 | 904.6 | 792.0 | |
| 0.00 | 2.22 | 0.00 | 1.21 | -24.37 | 76.80 | 2.84 | 186.22 | 0.4178 | 871.0 | 690.9 | |
| 0.00 | 2.05 | 0.00 | 1.12 | -25.15 | 76.72 | 2.76 | 185.84 | 0.4299 | 690.0 | 592.1 | |
| 0.00 | 0.85 | 0.00 | 0.46 | -24.44 | 76.44 | 2.48 | 185.43 | 0.4182 | 759.0 | 580.7 | |
| 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. | |