SDO HMI 2011-02-27 11:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.88 | 15.94 | 5.55 | 10.05 | -21.99 | 181.80 | -36.43 | 116.79 | 0.6188 | 336.6 | -18.7 | |
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back to the solar disc SDO HMI 2011-02-27 11:58:58 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 | 0.95 | 0.00 | 0.57 | -20.21 | 185.89 | -32.34 | 115.90 | 0.5601 | 675.0 | 519.5 | |
| 8.88 | 11.20 | 5.55 | 7.00 | -21.54 | 182.27 | -35.95 | 116.32 | 0.6115 | 810.5 | 656.3 | |
| 0.00 | 0.95 | 0.00 | 0.61 | -22.86 | 180.34 | -37.89 | 117.50 | 0.6402 | -707.0 | -536.5 | |
| 0.00 | 0.86 | 0.00 | 0.56 | -23.19 | 180.15 | -38.08 | 117.91 | 0.6438 | -688.0 | -563.2 | |
| 0.00 | 1.98 | 0.00 | 1.31 | -24.22 | 178.86 | -39.36 | 118.88 | 0.6628 | -564.0 | -527.7 | |
| 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. | |