SDO HMI 2014-03-04 21:00:28 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.92 | 0.00 | 3.08 | -17.12 | 44.26 | -37.26 | 108.73 | 0.6131 | -48.0 | -66.3 | |
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back to the solar disc SDO HMI 2014-03-04 21:00:28 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 |
| 0.00 | 1.38 | 0.00 | 0.85 | -17.04 | 45.59 | -35.93 | 108.99 | 0.5956 | 573.0 | 546.0 | |
| 0.00 | 0.86 | 0.00 | 0.53 | -16.46 | 45.49 | -36.03 | 107.99 | 0.5954 | 624.0 | 456.5 | |
| 0.00 | 1.38 | 0.00 | 0.88 | -17.48 | 43.29 | -38.22 | 109.02 | 0.6265 | -723.0 | -510.6 | |
| 0.00 | 1.30 | 0.00 | 0.82 | -17.25 | 43.11 | -38.41 | 108.61 | 0.6283 | -666.0 | -563.7 | |
| 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. | |