SDO HMI 2013-09-18 09:59:05 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 27.16 | 157.06 | 44.68 | 261.79 | -17.60 | 59.18 | -69.20 | 111.00 | 0.9557 | 362.1 | 65.9 | |
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back to the solar disc SDO HMI 2013-09-18 09:59:05 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 |
| 21.39 | 152.45 | 34.96 | 251.91 | -17.61 | 59.49 | -68.90 | 111.08 | 0.9544 | 575.1 | 79.5 | |
| 5.77 | -1.00 | 9.72 | -1.00 | -17.68 | 58.88 | -69.50 | 111.01 | 0.9573 | -204.9 | 999999 | |
| 0.00 | 1.51 | 0.00 | 2.86 | -18.60 | 56.97 | -71.42 | 111.50 | 0.9668 | -434.0 | -339.4 | |
| 0.00 | 1.33 | 0.00 | 2.90 | -16.13 | 54.42 | -73.96 | 108.48 | 0.9745 | -433.0 | -376.5 | |
| 0.00 | 1.77 | 0.00 | 4.12 | -16.53 | 53.52 | -74.87 | 108.71 | 0.9780 | 19.0 | -25.9 | |
| 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. | |