SDO HMI 2011-09-01 14:59:08 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 21.83 | 123.91 | 11.80 | 66.97 | 18.61 | 299.58 | 21.14 | 301.13 | 0.4008 | -1126.1 | -442.2 | |
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back to the solar disc SDO HMI 2011-09-01 14:59:08 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 | 0.98 | 0.00 | 0.54 | 13.88 | 302.85 | 24.41 | 287.63 | 0.4227 | -599.0 | -462.4 | |
| 0.00 | 1.43 | 0.00 | 0.79 | 20.23 | 302.27 | 23.82 | 301.88 | 0.4482 | -805.0 | -594.0 | |
| 21.83 | 118.10 | 11.80 | 63.84 | 18.64 | 299.60 | 21.16 | 301.15 | 0.4013 | -1209.9 | -427.1 | |
| 0.00 | 3.40 | 0.00 | 1.80 | 18.30 | 296.55 | 18.10 | 303.97 | 0.3573 | -986.0 | -807.7 | |
| 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. | |