SDO HMI 2011-10-17 07:59:02 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.52 | 60.15 | 19.92 | 59.60 | 20.24 | 95.13 | 60.00 | 290.12 | 0.8672 | 452.6 | -183.0 | |
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back to the solar disc SDO HMI 2011-10-17 07:59:02 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 | 3.32 | 0.00 | 3.51 | 19.73 | 97.43 | 62.30 | 289.33 | 0.8851 | -402.0 | -202.4 | |
| 1.92 | 14.84 | 2.00 | 15.44 | 19.36 | 97.04 | 61.91 | 288.93 | 0.8819 | -555.3 | -528.4 | |
| 0.00 | 1.92 | 0.00 | 1.87 | 20.07 | 94.55 | 59.42 | 289.97 | 0.8624 | 37.0 | 17.8 | |
| 13.27 | 40.07 | 12.76 | 38.78 | 20.51 | 94.14 | 59.01 | 290.52 | 0.8594 | 673.2 | 24.7 | |
| 5.33 | -4.00 | 5.16 | -4.00 | 20.97 | 94.31 | 59.18 | 291.04 | 0.8612 | 544.0 | 999999 | |
| 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. | |