SDO HMI 2013-09-18 02:59:05 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 21.66 | 125.39 | 44.21 | 261.74 | -17.57 | 59.28 | -72.94 | 110.15 | 0.9717 | 319.6 | 72.0 | |
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back to the solar disc SDO HMI 2013-09-18 02:59:05 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 |
| 15.80 | 122.02 | 31.94 | 251.23 | -17.60 | 59.64 | -72.58 | 110.25 | 0.9705 | 611.9 | 90.4 | |
| 5.86 | -1.00 | 12.27 | -1.00 | -17.66 | 59.14 | -73.08 | 110.21 | 0.9725 | -295.0 | 999999 | |
| 0.00 | 1.15 | 0.00 | 3.65 | -16.59 | 53.96 | -78.27 | 108.15 | 0.9882 | -347.0 | -339.5 | |
| 0.00 | 0.98 | 0.00 | 2.87 | -16.17 | 54.56 | -77.66 | 107.83 | 0.9864 | -350.0 | -340.3 | |
| 0.00 | 1.24 | 0.00 | 3.99 | -16.47 | 53.66 | -78.56 | 107.98 | 0.9889 | -141.0 | -208.9 | |
| 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. | |