SDO HMI 2011-08-31 04:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 31.09 | 159.91 | 15.71 | 80.83 | 18.24 | 299.66 | 2.52 | 347.55 | 0.1978 | -1192.7 | -455.0 | |
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back to the solar disc SDO HMI 2011-08-31 04:59:08 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 | 3.58 | 0.00 | 1.80 | 14.06 | 302.23 | 5.08 | 324.46 | 0.1484 | -784.0 | -725.5 | |
| 0.00 | 1.16 | 0.00 | 0.58 | 14.12 | 301.82 | 4.67 | 326.91 | 0.1454 | -840.0 | -721.2 | |
| 31.09 | 153.47 | 15.71 | 77.59 | 18.37 | 299.62 | 2.48 | 348.08 | 0.1994 | -1261.5 | -441.6 | |
| 0.00 | 1.70 | 0.00 | 0.86 | 18.35 | 296.82 | -0.33 | 1.62 | 0.1946 | -873.0 | -679.8 | |
| 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. | |