SDO HMI 2011-08-17 00:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 11.62 | 57.01 | 19.61 | 91.22 | -20.82 | 56.87 | -67.46 | 114.60 | 0.9502 | 288.4 | 51.5 | |
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back to the solar disc SDO HMI 2011-08-17 00:59:09 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 | 0.81 | 0.00 | 1.21 | -21.30 | 58.06 | -66.27 | 115.39 | 0.9455 | 413.0 | 370.6 | |
| 1.17 | 51.07 | 1.77 | 78.80 | -21.11 | 57.99 | -66.34 | 115.17 | 0.9455 | 519.2 | 66.6 | |
| 7.48 | -2.00 | 11.37 | -2.00 | -20.72 | 57.59 | -66.74 | 114.67 | 0.9470 | 573.3 | 999999 | |
| 2.97 | 5.13 | 6.47 | 11.21 | -21.08 | 51.27 | -73.06 | 113.55 | 0.9747 | -294.5 | -239.9 | |
| 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. | |