SDO HMI 2011-08-21 09:59:09 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 12.33 | 34.73 | 13.99 | 39.66 | 18.99 | 1.57 | -64.96 | 72.20 | 0.9015 | -486.3 | -21.8 | |
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back to the solar disc SDO HMI 2011-08-21 09:59:09 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 |
| 1.62 | 4.77 | 1.79 | 5.26 | 19.19 | 2.39 | -64.14 | 71.95 | 0.8957 | -596.2 | -647.4 | |
| 1.08 | 2.61 | 1.19 | 2.88 | 18.84 | 2.42 | -64.11 | 72.34 | 0.8954 | -658.7 | -474.3 | |
| 8.37 | 27.35 | 9.56 | 31.52 | 19.02 | 1.38 | -65.15 | 72.18 | 0.9029 | -477.9 | 121.2 | |
| 1.26 | -3.00 | 1.45 | -3.00 | 18.65 | 1.19 | -65.34 | 72.59 | 0.9042 | -263.9 | 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. | |