SDO HMI 2011-02-15 03:58:57 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.80 | 18.09 | 4.48 | 10.22 | 19.62 | 30.99 | 10.36 | 339.80 | 0.4843 | -401.5 | -341.5 | |
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back to the solar disc SDO HMI 2011-02-15 03:58:57 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 |
| 7.37 | 9.60 | 4.24 | 5.51 | 19.68 | 35.84 | 15.21 | 330.82 | 0.5088 | -913.9 | -742.2 | |
| 0.00 | 0.94 | 0.00 | 0.53 | 18.89 | 31.53 | 10.89 | 337.52 | 0.4695 | 698.0 | 608.6 | |
| 0.00 | 0.86 | 0.00 | 0.48 | 19.40 | 30.63 | 10.00 | 339.59 | 0.4718 | 706.0 | 569.5 | |
| 0.00 | 1.03 | 0.00 | 0.58 | 20.18 | 28.13 | 7.50 | 344.88 | 0.4715 | 834.0 | 693.2 | |
| 0.00 | 0.94 | 0.00 | 0.52 | 19.93 | 23.59 | 2.96 | 353.84 | 0.4546 | -638.0 | -530.6 | |
| 0.00 | 1.29 | 0.00 | 0.71 | 19.89 | 23.40 | 2.77 | 354.22 | 0.4538 | -699.0 | -550.9 | |
| 0.43 | 3.43 | 0.24 | 1.89 | 19.33 | 22.58 | 1.95 | 355.84 | 0.4438 | -995.0 | -809.7 | |
| 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. | |