SDO HMI 2013-09-19 16:59:04 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 55.37 | 299.10 | 51.55 | 277.02 | -17.64 | 58.70 | -52.64 | 116.20 | 0.8460 | 706.1 | 173.3 | |
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back to the solar disc SDO HMI 2013-09-19 16:59:04 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 |
| 50.50 | 285.80 | 46.31 | 262.92 | -17.68 | 58.98 | -52.35 | 116.34 | 0.8439 | 893.4 | 189.6 | |
| 0.00 | 2.04 | 0.00 | 1.97 | -18.97 | 57.34 | -54.00 | 117.10 | 0.8614 | 357.0 | 215.5 | |
| 0.80 | 1.95 | 0.85 | 2.09 | -17.01 | 53.04 | -58.30 | 113.42 | 0.8886 | -515.1 | -459.2 | |
| 0.53 | 1.51 | 0.57 | 1.61 | -16.58 | 53.07 | -58.27 | 112.98 | 0.8873 | -599.3 | -510.9 | |
| 0.00 | 0.80 | 0.00 | 0.87 | -17.34 | 52.68 | -58.65 | 113.66 | 0.8919 | -451.0 | -377.9 | |
| 0.35 | 2.48 | 0.38 | 2.69 | -16.67 | 52.54 | -58.80 | 112.90 | 0.8914 | -346.2 | -229.4 | |
| 3.19 | 4.52 | 3.44 | 4.87 | -16.37 | 52.62 | -58.71 | 112.61 | 0.8900 | -437.2 | -329.5 | |
| 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. | |