SDO HMI 2014-05-18 08:00:38 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.45 | 8.73 | 0.30 | 5.79 | -18.43 | 217.88 | 39.25 | 244.49 | 0.6673 | -725.3 | -586.1 | |
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back to the solar disc SDO HMI 2014-05-18 08:00:38 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 | 5.22 | 0.00 | 3.47 | -18.47 | 217.99 | 39.36 | 244.48 | 0.6688 | -648.0 | -563.1 | |
| 0.45 | 2.16 | 0.30 | 1.43 | -18.29 | 217.74 | 39.10 | 244.63 | 0.6650 | -825.8 | -699.6 | |
| 0.00 | 1.35 | 0.00 | 0.89 | -18.51 | 217.67 | 39.04 | 244.28 | 0.6652 | -672.0 | -532.0 | |
| 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. | |