SDO HMI 2011-02-15 18:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.26 | 10.19 | 1.97 | 6.09 | 19.50 | 33.94 | 21.54 | 321.68 | 0.5590 | 34.5 | 67.3 | |
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back to the solar disc SDO HMI 2011-02-15 18:58:57 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 |
| 3.26 | 5.82 | 1.97 | 3.53 | 19.67 | 35.81 | 23.41 | 319.45 | 0.5776 | -902.4 | -791.6 | |
| 0.00 | 2.31 | 0.00 | 1.36 | 19.38 | 31.59 | 19.18 | 324.56 | 0.5367 | 711.0 | 692.1 | |
| 0.00 | 0.69 | 0.00 | 0.40 | 19.04 | 31.31 | 18.91 | 324.56 | 0.5304 | 629.0 | 480.9 | |
| 0.00 | 1.37 | 0.00 | 0.80 | 19.16 | 31.00 | 18.59 | 325.15 | 0.5291 | 609.0 | 470.8 | |
| 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. | |