SDO HMI 2011-11-17 15:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.81 | 12.10 | 9.94 | 25.16 | 7.97 | 265.53 | -76.44 | 82.42 | 0.9723 | 188.9 | -138.2 | |
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back to the solar disc SDO HMI 2011-11-17 15:58:57 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 | 1.37 | 0.00 | 2.95 | 9.29 | 265.09 | -76.88 | 81.07 | 0.9740 | -22.0 | -64.3 | |
| 1.29 | 10.73 | 2.63 | 22.21 | 7.87 | 265.74 | -76.23 | 82.53 | 0.9715 | -121.8 | -156.0 | |
| 3.52 | -2.00 | 7.31 | -2.00 | 7.77 | 265.54 | -76.44 | 82.63 | 0.9723 | 329.5 | 999999 | |
| 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. | |