SDO HMI 2013-09-18 04:59:05 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 22.98 | 134.91 | 43.81 | 263.20 | -17.56 | 59.18 | -71.94 | 110.35 | 0.9678 | 398.3 | 67.1 | |
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back to the solar disc SDO HMI 2013-09-18 04:59:05 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 |
| 17.48 | 130.47 | 33.05 | 250.72 | -17.60 | 59.56 | -71.57 | 110.47 | 0.9664 | 649.7 | 85.2 | |
| 5.50 | -1.00 | 10.76 | -1.00 | -17.66 | 59.09 | -72.03 | 110.43 | 0.9684 | -250.2 | 999999 | |
| 0.00 | 1.33 | 0.00 | 3.54 | -16.10 | 54.53 | -76.59 | 107.96 | 0.9833 | -337.0 | -270.9 | |
| 0.00 | 3.11 | 0.00 | 8.94 | -16.62 | 53.71 | -77.41 | 108.33 | 0.9859 | -198.0 | -219.0 | |
| 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. | |