SDO HMI 2011-08-29 01:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 30.12 | 162.97 | 16.72 | 90.39 | 17.82 | 300.13 | -25.08 | 64.03 | 0.4508 | -1129.7 | -417.5 | |
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back to the solar disc SDO HMI 2011-08-29 01:59:08 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 | 1.97 | 0.00 | 1.08 | 20.84 | 303.63 | -21.58 | 54.52 | 0.4239 | -615.0 | -513.3 | |
| 0.00 | 0.90 | 0.00 | 0.49 | 20.27 | 303.44 | -21.77 | 55.91 | 0.4219 | -712.0 | -599.2 | |
| 0.00 | 1.61 | 0.00 | 0.87 | 13.48 | 303.14 | -22.07 | 71.92 | 0.3860 | -858.0 | -638.1 | |
| 0.00 | 2.42 | 0.00 | 1.32 | 14.19 | 301.34 | -23.87 | 71.27 | 0.4160 | -917.0 | -702.6 | |
| 30.12 | 156.07 | 16.72 | 86.63 | 17.87 | 300.02 | -25.19 | 64.01 | 0.4525 | -1214.4 | -406.6 | |
| 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. | |