SDO HMI 2011-03-03 21:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.76 | 7.60 | 3.05 | 8.05 | 23.99 | 215.17 | 55.14 | 302.05 | 0.8860 | -63.0 | 146.1 | |
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back to the solar disc SDO HMI 2011-03-03 21:58:59 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 |
| 2.76 | 4.40 | 3.05 | 4.86 | 24.40 | 216.41 | 56.39 | 301.97 | 0.8959 | -436.8 | -347.3 | |
| 0.00 | 2.42 | 0.00 | 2.41 | 23.21 | 213.28 | 53.25 | 302.00 | 0.8705 | 563.0 | 430.3 | |
| 0.00 | 0.78 | 0.00 | 0.78 | 23.88 | 213.24 | 53.21 | 302.73 | 0.8725 | 451.0 | 409.7 | |
| 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. | |