SDO HMI 2014-03-04 16:00:28 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 15.89 | 33.51 | 64.97 | 139.12 | -10.21 | 359.98 | -84.29 | 99.48 | 0.9934 | 183.5 | 5.6 | |
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back to the solar disc SDO HMI 2014-03-04 16:00:28 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 |
| 15.89 | 28.76 | 64.97 | 116.69 | -10.41 | 0.12 | -84.15 | 99.67 | 0.9931 | 191.3 | 36.6 | |
| 0.00 | 1.81 | 0.00 | 8.78 | -9.32 | 359.20 | -85.08 | 98.67 | 0.9950 | -79.0 | -126.6 | |
| 0.00 | 2.94 | 0.00 | 13.65 | -9.06 | 359.33 | -84.94 | 98.40 | 0.9948 | -59.0 | -26.9 | |
| 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. | |