SDO HMI 2014-03-30 20:00:31 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.63 | 6.92 | 2.50 | 6.46 | -5.90 | 157.66 | 58.32 | 267.18 | 0.8494 | 10.7 | -32.0 | |
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back to the solar disc SDO HMI 2014-03-30 20:00:31 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 |
| 2.63 | 4.91 | 2.50 | 4.67 | -6.26 | 158.40 | 59.06 | 266.69 | 0.8561 | 393.3 | 294.2 | |
| 0.00 | 0.96 | 0.00 | 0.87 | -5.08 | 156.54 | 57.21 | 268.23 | 0.8399 | -518.0 | -493.4 | |
| 0.00 | 1.05 | 0.00 | 0.92 | -4.85 | 154.93 | 55.59 | 268.68 | 0.8245 | -417.0 | -363.6 | |
| 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. | |