SDO HMI 2014-07-18 20:00:40 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 3.46 | 0.00 | 2.19 | -14.65 | 51.01 | -33.71 | 120.59 | 0.6261 | 565.2 | 457.2 | |
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back to the solar disc SDO HMI 2014-07-18 20:00:40 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 | 0.91 | 0.00 | 0.58 | -15.49 | 51.43 | -33.29 | 122.09 | 0.6266 | 593.0 | 488.2 | |
| 0.00 | 0.82 | 0.00 | 0.52 | -15.06 | 50.86 | -33.86 | 121.07 | 0.6304 | 607.0 | 468.3 | |
| 0.00 | 0.82 | 0.00 | 0.52 | -14.74 | 50.92 | -33.80 | 120.66 | 0.6276 | 546.0 | 469.8 | |
| 0.00 | 0.91 | 0.00 | 0.57 | -13.33 | 50.82 | -33.90 | 118.56 | 0.6202 | 515.0 | 404.3 | |
| 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. | |