SDO HMI 2011-08-27 21:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.31 | 146.48 | 15.24 | 95.94 | 17.70 | 300.12 | -40.51 | 71.09 | 0.6563 | -960.3 | -363.7 | |
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back to the solar disc SDO HMI 2011-08-27 21:59:08 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 |
| 23.31 | 141.01 | 15.24 | 92.21 | 17.70 | 300.23 | -40.40 | 71.06 | 0.6550 | -1123.6 | -363.9 | |
| 0.00 | 1.17 | 0.00 | 0.79 | 20.12 | 298.43 | -42.20 | 67.96 | 0.6827 | -528.0 | -475.4 | |
| 0.00 | 1.70 | 0.00 | 1.15 | 16.06 | 298.00 | -42.63 | 73.96 | 0.6794 | -762.0 | -595.9 | |
| 0.00 | 1.61 | 0.00 | 1.09 | 15.95 | 297.73 | -42.90 | 74.18 | 0.6826 | -580.0 | -508.9 | |
| 0.00 | 0.99 | 0.00 | 0.70 | 19.83 | 294.94 | -45.69 | 69.23 | 0.7222 | 518.0 | 390.2 | |
| 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. | |