SDO HMI 2011-09-07 15:59:07 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.78 | 7.40 | 1.73 | 7.46 | -16.35 | 255.00 | 56.35 | 246.56 | 0.8721 | -245.9 | -243.9 | |
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back to the solar disc SDO HMI 2011-09-07 15:59:07 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 | 1.34 | 0.00 | 1.41 | -16.18 | 256.65 | 58.00 | 247.31 | 0.8847 | -361.0 | -297.3 | |
| 0.00 | 0.80 | 0.00 | 0.93 | -19.58 | 258.36 | 59.71 | 244.26 | 0.9050 | 460.0 | 389.4 | |
| 0.00 | 0.89 | 0.00 | 0.87 | -15.56 | 254.24 | 55.59 | 247.17 | 0.8644 | -285.0 | -248.8 | |
| 1.78 | 4.37 | 1.73 | 4.25 | -15.87 | 253.87 | 55.22 | 246.69 | 0.8623 | -564.8 | -444.9 | |
| 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. | |