SDO HMI 2011-03-07 19:58:59 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.87 | 301.44 | 13.90 | 548.34 | -18.01 | 184.96 | 76.53 | 253.21 | 0.9670 | 252.8 | 167.6 | |
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back to the solar disc SDO HMI 2011-03-07 19:58:59 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 |
| 2.25 | 246.18 | 4.45 | 455.68 | -17.22 | 185.39 | 76.96 | 254.02 | 0.9691 | -187.0 | 148.2 | |
| 0.00 | 1.47 | 0.00 | 2.75 | -18.25 | 184.60 | 76.17 | 252.99 | 0.9655 | 621.0 | 536.5 | |
| 0.00 | 1.04 | 0.00 | 1.78 | -21.39 | 183.24 | 74.81 | 249.78 | 0.9589 | 53.0 | 111.5 | |
| 1.38 | 51.19 | 2.32 | 85.73 | -21.54 | 182.73 | 74.30 | 249.63 | 0.9565 | 568.7 | 284.2 | |
| 4.24 | -4.00 | 7.13 | -4.00 | -22.11 | 182.83 | 74.40 | 249.04 | 0.9569 | 488.8 | 999999 | |
| 0.00 | 1.56 | 0.00 | 2.40 | -24.20 | 181.15 | 72.72 | 246.84 | 0.9486 | -374.0 | -278.7 | |
| 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. | |