SDO HMI 2011-12-15 09:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.89 | 11.40 | 1.54 | 6.12 | -18.36 | 322.14 | -14.12 | 143.00 | 0.3807 | -477.3 | -144.0 | |
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back to the solar disc SDO HMI 2011-12-15 09:58:55 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 | 2.89 | 0.00 | 1.51 | -16.23 | 326.86 | -9.40 | 149.34 | 0.3088 | 1101.0 | 812.8 | |
| 2.89 | 3.32 | 1.54 | 1.76 | -17.45 | 322.86 | -13.40 | 142.20 | 0.3624 | -915.2 | -704.6 | |
| 0.00 | 1.87 | 0.00 | 1.00 | -17.97 | 322.02 | -14.24 | 141.47 | 0.3773 | -830.0 | -690.5 | |
| 0.00 | 0.85 | 0.00 | 0.47 | -20.32 | 318.40 | -17.86 | 139.19 | 0.4419 | -728.0 | -539.0 | |
| 0.00 | 2.47 | 0.00 | 1.38 | -21.45 | 317.43 | -18.84 | 139.48 | 0.4645 | -778.0 | -566.3 | |
| 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. | |